DETERMINING OPEN CIRCUIT LOCATION (CAN-BUS No.1) [TYPE-B]


id100248001700

Caution
•  Perform the following malfunction diagnosis only when it is diagnosed with a open circuit by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [TYPE-B]. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [TYPE-B].)
•  If the malfunctioning part is detected in the communication line, before disconnecting the related connector for inspection, press the connector in the connection direction to verify that there is no looseness or disconnection.
•  When disconnecting the connector, verify that there is no damage, deformation, or corrosion of the connector terminals.

1.  Verify the CAN system-related module DTCs and the module displayed in red or blue on the M-MDS screen.

2.  Apply the communication error DTC and the module displayed in red or blue to the DTC output pattern and malfunctioning location, and select the possible cause for the diagnostic result and the reference for the inspection item. (See DTC Output Pattern And Malfunctioning Location)

Note
•  The open circuit location can be determined by the DTC indicated in the DTC output pattern and malfunctioning location chart. DTCs not listed in the chart are not used for the determination of the open circuit location. (See DTC Output Pattern And Malfunctioning Location.)
•  The module may be displayed in red or blue on the M-MDS screen even if there is no malfunction depending on the vehicle specification.

3.  Inspect the possible cause and inspection item of the applicable malfunctioning part.


DTC Output Pattern And Malfunctioning Location

Cross (×): Control error-related DTC

M-MDS display

DTC

DTC output pattern and malfunctioning location

DTC output module

PCM
(PCM)
U0101:00
       
×
                                               
 
 
U0104:00
   
×
                                                       
U0121:00
 
×
                                                         
U0131:00
                                                 
×
         
U0140:00
           
×
                                               
U0151:00
                                             
×
 
           
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
U023A:00
                                         
×
                 
ABS
(DSC HU/CM)
U0100:00
×
                                                           
U0101:00
       
×
                                                   
U0104:00
   
×
                                                       
U0114:00
                                 
×
                         
U0128:00
                             
×
                             
U0131:00
                                                 
×
         
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
U023A:00
                                         
×
                 
SBS/MRCC*1
(Radar unit)
U0100:00
×
                                                           
U0101:00
       
×
                                                   
U0121:00
 
×
                                                         
U0131:00
                                                 
×
         
U0140:00
           
×
                                               
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
U023A:00
                                         
×
                 
TCM
(TCM)
U0100:00
×
   
×
                                                     
U0121:00
 
×
 
×
                                                     
U0131:00
                                                 
×
         
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
F_BCM
(Front body control module (FBCM))
U0100:00
×
   
×
 
×
                                                 
U0101:00
       
×
×
                                                 
U0121:00
 
×
 
×
 
×
                                                 
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
U023A:00
                                         
×
                 
AFS/ALM
(Adaptive front lighting system (AFS) control module)
U0100:00
×
   
×
 
×
 
×
                                             
U0131:00
                                                 
×
         
U0140:00
           
×
×
                                             
U0155:00
                                                     
×
 
×
 
AFS/ALM
(Auto leveling control module)
U0100:00
×
   
×
 
×
 
×
                                             
U0140:00
           
×
×
                                             
U0155:00
                                                     
×
 
×
 
AFS/ALM
(Adaptive LED headlights control module)
U0100:00
×
   
×
 
×
 
×
                                             
U0121:00
 
×
 
×
 
×
 
×
                                             
U0131:00
                                                 
×
         
U0140:00
           
×
×
                                             
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
U023A:00
                                         
×
                 
PLG*2
(Power liftgate (PLG) control module)
U0100:00
×
   
×
 
×
 
×
 
×
                                         
U0101:00
       
×
   
×
 
×
                                         
U0155:00
                                                     
×
 
×
 
U0156:00
                                                             
U0214:00
                                                   
×
       
RSML*3
(Rear one-touch walk-in control module)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
                                     
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
RSML*4
(Rear power seat control module (LH))
U0100:00
×
   
×
 
×
 
×
 
×
 
×
                                     
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
RSMR*4
(Rear power seat control module (RH))
U0100:00
×
   
×
 
×
 
×
 
×
 
×
                                     
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
EPB
(Electric parking brake control module)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
                                     
U0101:00
       
×
   
×
 
×
 
×
                                     
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
                                     
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
4×4*5
(4WD control module)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
                           
U0101:00
       
×
   
×
 
×
 
×
       
×
                           
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
                           
DSM*6
(Position memory control module)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
                       
U0101:00
       
×
   
×
 
×
 
×
       
×
 
×
                       
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
FSC*7
(Forward sensing camera (FSC))
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
                   
U0104:00
   
×
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
                   
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
                   
U0131:00
                                                 
×
         
U0140:00
           
×
×
 
×
 
×
       
×
 
×
 
×
                   
U0151:00
                                             
×
             
U0155:00
                                                     
×
 
×
 
U0156:00
                                                             
U0182:00
               
×
×
 
×
       
×
 
×
 
×
                   
U0214:00
                                                   
×
       
RCM
(SAS control module)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
               
U0101:00
       
×
   
×
 
×
 
×
       
×
 
×
 
×
 
×
               
U0155:00
                                                     
×
 
×
 
EPS
(EPS control module
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0126:00
                                             
×
×
           
U0155:00
                                                     
×
 
×
 
U0214:00
                                                   
×
       
U023A:00
                                         
×
×
 
×
           
SSU
(Start stop unit)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0101:00
       
×
   
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0121:87
 
×
 
×
     
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0131:00
                                                 
×
         
U0140:00
           
×
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0146:00
                                                     
×
 
×
 
U0151:00
                                             
×
×
           
U0155:00
                                                     
×
 
×
 
IC
(Instrument cluster)
U0100:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0101:00
       
×
   
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0104:00
   
×
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0114:00
                                 
×
×
 
×
 
×
 
×
           
U0121:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0128:00
                             
×
×
 
×
 
×
 
×
 
×
           
U0131:00
                                                 
×
         
U0140:00
           
×
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0151:00
                                             
×
×
           
U0156:00
                                                             
U0158:00
                                                       
×
   
U0182:00
               
×
×
 
×
       
×
 
×
 
×
 
×
 
×
           
U0214:00
                                                   
×
       
U023A:00
                                         
×
×
 
×
           
CMU
(Connectivity master unit (CMU))
U0101:00
       
×
   
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
U0131:00
                                                 
×
       
×
U0146:00
                                                           
×
U0151:00
                                             
×
×
         
×
U0155:00
                                                     
×
 
×
×
U213C:00
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
U213E:00
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
GWU
(Gateway unit (GWU))
U0151:00
                                             
×
×
           
U2132:00
                                                             
M-MDS display module
[Fail] display pattern
PCM
×
   
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
ABS
 
×
 
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
SBS/MRCC*1
 
 
×
×
 
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
TCM
 
     
×
×
 
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
F_BCM
 
         
×
×
 
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
AFS/ALM
 
             
×
×
 
×
       
×
 
×
 
×
 
×
 
×
         
×
PLG*2
 
                 
×
×
       
×
 
×
 
×
 
×
 
×
         
×
RSML*3
 
                     
×
     
×
 
×
 
×
 
×
 
×
         
×
RSML*4
 
                       
×
   
×
 
×
 
×
 
×
 
×
         
×
RSMR*4
 
                         
×
 
×
 
×
 
×
 
×
 
×
         
×
EPB
 
                           
×
×
 
×
 
×
 
×
 
×
         
×
4×4*5
 
                               
×
×
 
×
 
×
 
×
         
×
DSM*6
 
                                   
×
×
 
×
 
×
         
×
FSC*7
 
                                       
×
×
 
×
         
×
RCM
 
                                           
×
×
         
×
EPS
 
                                               
×
       
×
SSU
 
                                                 
×
     
×
HUD
 
                                                   
×
×
 
×
IC
 
                                                   
×
 
×
×
GWU
 
                                                         
×
Diagnostic result
Possible cause and inspection item
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
AA
AB
AC
AD
AE

*1  :With smart brake support (SBS)
*2  :With power liftgate (PLG) system
*3  :With rear one-touch walk-in seat
*4  :With rear power seat
*5  :4WD
*6  :With position memory system
*7  :With forward sensing camera (FSC)

A


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  PCM power supply voltage or body ground malfunction
•  Open circuit in wiring harness between PCM and connector C-53
•  Connector C-53 malfunction
•  PCM malfunction


System wiring diagram

ac8wzw00004561


Inspection item

•  PCM power supply voltage-related wiring harness and fuse
•  PCM body ground related wiring harness
•  PCM connector
•  Connector C-53
•  Wiring harness between PCM terminal 2AK and connector C-53 (SKYACTIV-D 2.2)
•  Wiring harness between PCM terminal 2AL and connector C-53 (SKYACTIV-D 2.2)
•  Wiring harness between PCM terminal 2S and connector C-53 (SKYACTIV-G 2.5)
•  Wiring harness between PCM terminal 2T and connector C-53 (SKYACTIV-G 2.5)
•  PCM


B


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  DSC HU/CM power supply voltage or body ground malfunction
•  Open circuit in wiring harness between DSC HU/CM and connector C-53
•  Connector C-53 malfunction
•  DSC HU/CM malfunction


System wiring diagram

ac8wzw00004562


Inspection item

•  DSC HU/CM power supply voltage-related wiring harness and fuse
•  DSC HU/CM body ground related wiring harness
•  DSC HU/CM connector
•  Connector C-53
•  Wiring harness between DSC HU/CM terminal AF and connector C-53
•  Wiring harness between DSC HU/CM terminal AC and connector C-53
•  DSC HU/CM


C


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Radar unit power supply voltage or body ground malfunction
•  Open circuit in wiring harness between radar unit and connector C-53
•  Connector C-53 malfunction
•  Radar unit malfunction


System wiring diagram

ac8wzw00004563


Inspection item

•  Radar unit power supply voltage-related wiring harness and fuse
•  Radar unit body ground related wiring harness
•  Radar unit connector
•  Connector C-53
•  Wiring harness between radar unit terminal D and connector C-53
•  Wiring harness between radar unit terminal C and connector C-53
•  Radar unit


D


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-53 and connector C-01
•  Open circuit in wiring harness between connector C-01 and branch A
•  Connector C-53 malfunction
•  Connector C-01 malfunction


System wiring diagram

ac8wzw00004564


Inspection item

•  Connector C-53
•  Connector C-01
•  Wiring harness between connector C-53 and connector C-01
•  Wiring harness between connector C-01 and branch A


E


SKYACTIV-G 2.5

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  TCM power supply voltage or body ground malfunction
•  Open circuit in wiring harness between TCM and branch A
•  TCM malfunction

System wiring diagram

ac8wzw00004565
Inspection item
•  TCM power supply voltage-related wiring harness and fuse
•  TCM body ground related wiring harness
•  TCM connector
•  Wiring harness between TCM terminal E and branch A
•  Wiring harness between TCM terminal F and branch A


SKYACTIV-D 2.2

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  TCM power supply voltage or body ground malfunction
•  Open circuit in wiring harness between TCM and connector C-01
•  Open circuit in wiring harness between connector C-01 and front body control module (FBCM)
•  Connector C-01 malfunction
•  TCM malfunction
•  CAN circuit in front body control module (FBCM) malfunction

System wiring diagram

ac8wzw00004566
Inspection item
•  TCM power supply voltage-related wiring harness and fuse
•  TCM body ground related wiring harness
•  TCM connector
•  Front body control module (FBCM) connector
•  Connector C-01
•  Wiring harness between TCM terminal E and connector C-01
•  Wiring harness between TCM terminal F and connector C-01
•  Wiring harness between front body control module (FBCM) terminal 2R and connector C-01
•  Wiring harness between front body control module (FBCM) terminal 2L and connector C-01
•  Front body control module (FBCM)
―  Between front body control module (FBCM) terminal 2P and front body control module (FBCM) terminal 2R
―  Between front body control module (FBCM) terminal 2N and front body control module (FBCM) terminal 2L


F


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-01 and front body control module (FBCM)
•  Connectors C-01 malfunction
•  CAN circuit in front body control module (FBCM) malfunction


System wiring diagram

ac8wzw00004567


Inspection item

•  Connectors C-01 malfunction
•  Front body control module (FBCM) connector
•  Wiring harness between connectors C-01 and front body control module (FBCM)
•  Front body control module (FBCM)
―  Between front body control module (FBCM) terminal 2P and front body control module (FBCM) terminal 2K
―  Between front body control module (FBCM) terminal 2N and front body control module (FBCM) terminal 2I


G


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Front body control module (FBCM) power supply voltage or body ground malfunction
•  Front body control module (FBCM) malfunction


System wiring diagram

ac8wzw00004108


Inspection item

•  Front body control module (FBCM) power supply voltage-related wiring harness and fuse
•  Front body control module (FBCM) body ground related wiring harness
•  Front body control module (FBCM)


H


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between front body control module (FBCM) and connectors C-55, C-54
•  Connectors C-55, C-54 malfunction
•  CAN circuit in front body control module (FBCM) malfunction


System wiring diagram

ac8wzw00004568


Inspection item

•  Front body control module (FBCM) connector
•  Connectors C-55, C-54
•  Wiring harness between front body control module (FBCM) terminal 2K and connector C-55
•  Wiring harness between front body control module (FBCM) terminal 2I and connector C-54
•  Front body control module (FBCM)
―  Between front body control module (FBCM) terminal 2P and front body control module (FBCM) terminal 2K
―  Between front body control module (FBCM) terminal 2N and front body control module (FBCM) terminal 2I


I


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module and connectors C-55, C-54
•  Connectors C-55, C-54 malfunction
•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module malfunction


System wiring diagram

ac8wzw00004569


Inspection item

•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module power supply voltage-related wiring harness and fuse
•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module body ground related wiring harness
•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module connector
•  Connectors C-55, C-54
•  Wiring harness between adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module terminal A and connector C-55
•  Wiring harness between adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module terminal B and connector C-54
•  Adaptive front lighting system (AFS) control module / auto leveling control module / adaptive LED headlights control module


J


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connectors C-55, C-54 and connector C-08
•  Open circuit in wiring harness between connector C-08 and connector C-24
•  Open circuit in wiring harness between connector C-24 and connectors C-70, C-71
•  Connectors C-55, C-54 malfunction
•  Connector C-08 malfunction
•  Connector C-24 malfunction
•  Connectors C-70, C-71 malfunction


System wiring diagram

ac8wzw00004570


Inspection item

•  Wiring harness between connectors C-55, C-54 and connector C-08
•  Wiring harness between connector C-08 and connector C-24
•  Wiring harness between connector C-24 and connectors C-70, C-71
•  Connectors C-55, C-54
•  Connector C-08
•  Connector C-24
•  Connectors C-70, C-71


K


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Power liftgate (PLG) control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between power liftgate (PLG) control module and connectors C-70, C-71
•  Connectors C-70, C-71 malfunction
•  Power liftgate (PLG) control module malfunction


System wiring diagram

ac8wzw00004571


Inspection item

•  Power liftgate (PLG) control module power supply voltage-related wiring harness and fuse
•  Power liftgate (PLG) control module body ground related wiring harness
•  Power liftgate (PLG) control module connector
•  Connectors C-70, C-71
•  Wiring harness between power liftgate (PLG) control module terminal 1B and connector C-70
•  Wiring harness between power liftgate (PLG) control module terminal 1A and connector C-71
•  Power liftgate (PLG) control module


L


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connectors C-70, C-71 and connector C-24
•  Open circuit in wiring harness between connector C-24 and connectors C-22, C-23
•  Connectors C-70, C-71 malfunction
•  Connector C-24 malfunction
•  Connectors C-22, C-23 malfunction


System wiring diagram

ac8wzw00004572


Inspection item

•  Wiring harness between connectors C-70, C-71 and connector C-24
•  Wiring harness between connector C-24 and connectors C-22, C-23
•  Connectors C-70, C-71
•  Connector C-24
•  Connectors C-22, C-23


M


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Rear one-touch walk-in control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between connectors C-25 and connectors C-22, C-23
•  Open circuit in wiring harness between Rear one-touch walk-in control module and connector C-25
•  Connectors C-25 malfunction
•  Connectors C-22, C-23 malfunction
•  Rear one-touch walk-in control module malfunction


System wiring diagram

ac8wzw00004573


Inspection item

•  Rear one-touch walk-in control module power supply voltage-related wiring harness and fuse
•  Rear one-touch walk-in control module body ground related wiring harness
•  Rear one-touch walk-in control module connector
•  Connectors C-25
•  Connectors C-22, C-23
•  Wiring harness between rear one-touch walk-in control module terminal 1C and connector C-25
•  Wiring harness between rear one-touch walk-in control module terminal 1E and connector C-25
•  Wiring harness between connectors C-22, C-23 and connector C-25
•  Rear one-touch walk-in control module


N


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Rear power seat control module (LH) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between rear power seat control module (LH) and connector C-83
•  Open circuit in wiring harness between connector C-83 and connectors C-22, C-23
•  Connector C-83 malfunction
•  Connectors C-22, C-23 malfunction
•  Rear power seat control module (LH) malfunction


System wiring diagram

ac8wzw00004574


Inspection item

•  Rear power seat control module (LH) power supply voltage-related wiring harness and fuse
•  Rear power seat control module (LH) body ground related wiring harness
•  Rear power seat control module (LH) connector
•  Connector C-83
•  Connectors C-22, C-23
•  Wiring harness between rear power seat control module (LH) terminal 1C and connector C-83
•  Wiring harness between rear power seat control module (LH) terminal 1E and connector C-83
•  Wiring harness between connector C-83 and connectors C-22, C-23
•  Rear power seat control module (LH)


O


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Rear power seat control module (RH) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between rear power seat control module (RH) and connector C-84
•  Open circuit in wiring harness between connector C-84 and connector C-25
•  Open circuit in wiring harness between connector C-25 and connectors C-22, C-23
•  Connector C-84 malfunction
•  Connector C-25 malfunction
•  Connectors C-22, C-23 malfunction
•  Rear power seat control module (RH) malfunction


System wiring diagram

ac8wzw00004575


Inspection item

•  Rear power seat control module (RH) power supply voltage-related wiring harness and fuse
•  Rear power seat control module (RH) body ground related wiring harness
•  Rear power seat control module (RH) connector
•  Connector C-84
•  Connector C-25
•  Connectors C-22, C-23
•  Wiring harness between rear power seat control module (RH) terminal 1C and connector C-84
•  Wiring harness between rear power seat control module (RH) terminal 1E and connector C-84
•  Wiring harness between connector C-84 and connector C-25
•  Wiring harness between connector C-25 and connectors C-22, C-23
•  Rear power seat control module (RH)


P


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Electric parking brake control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between electric parking brake control module and connectors C-22, C-23
•  Connectors C-22, C-23 malfunction
•  Electric parking brake control module malfunction


System wiring diagram

ac8wzw00004576


Inspection item

•  Electric parking brake control module power supply voltage-related wiring harness and fuse
•  Electric parking brake control module body ground related wiring harness
•  Electric parking brake control module connector
•  Connectors C-22, C-23
•  Wiring harness between electric parking brake control module terminal 2G and connector C-22
•  Wiring harness between electric parking brake control module terminal 2F and connector C-23
•  Electric parking brake control module


Q


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connectors C-22, C-23 and connector C-45
•  Connectors C-22, C-23 malfunction
•  Connector C-45 malfunction


System wiring diagram

ac8wzw00004118


Inspection item

•  Wiring harness between connectors C-22, C-23 and connector C-45
•  Connectors C-22, C-23
•  Connector C-45


R


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  4WD control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between 4WD control module and connector C-45
•  Connector C-45 malfunction
•  4WD control module malfunction


System wiring diagram

ac8wzw00004577


Inspection item

•  4WD control module power supply voltage-related wiring harness and fuse
•  4WD control module body ground related wiring harness
•  4WD control module connector
•  Connector C-45
•  Wiring harness between 4WD control module terminal G and connector C-45
•  Wiring harness between 4WD control module terminal H and connector C-45
•  4WD control module


S


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-45 and connectors C-42, C-41
•  Connector C-45 malfunction
•  Connectors C-42, C-41 malfunction


System wiring diagram

ac8wzw00004578


Inspection item

•  Connector C-45
•  Connectors C-42, C-41
•  Wiring harness between connector C-45 and connectors C-42, C-41


T


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Position memory control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between position memory control module and connector C-31
•  Open circuit in wiring harness between connector C-31 and connectors C-42, C-41
•  Connector C-31 malfunction
•  Connectors C-42, C-41 malfunction
•  Position memory control module malfunction


System wiring diagram

ac8wzw00004579


Inspection item

•  Position memory control module power supply voltage-related wiring harness and fuse
•  Position memory control module body ground related wiring harness
•  Position memory control module connector
•  Connector C-31
•  Connectors C-42, C-41
•  Wiring harness between position memory control module terminal 1C and connector C-31
•  Wiring harness between position memory control module terminal 1E and connector C-31
•  Wiring harness between connector C-31 and connectors C-42, C-41
•  Position memory control module


U


With forward sensing camera (FSC)

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connectors C-42, C-41 and connector C-03
•  Open circuit in wiring harness between connector C-03 and connector C-19
•  Open circuit in wiring harness between connector C-19 and branch B
•  Connectors C-42, C-41 malfunction
•  Connector C-03 malfunction
•  Connector C-19 malfunction

System wiring diagram

ac8wzw00004580
Inspection item
•  Connectors C-42, C-41
•  Connector C-03
•  Connector C-19
•  Wiring harness between connectors C-42, C-41 and connector C-03
•  Wiring harness between connector C-03 and connector C-19
•  Wiring harness between connector C-19 and branch B


Without forward sensing camera (FSC)

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connectors C-42, C-41 and connector C-03
•  Open circuit in wiring harness between connector C-03 and connector C-19
•  Open circuit in wiring harness between connector C-19 and connector C-19
•  Open circuit in wiring harness between connector C-19 and connector C-63
•  Connectors C-42, C-41 malfunction
•  Connector C-03 malfunction
•  Connector C-19 malfunction
•  Connector C-63 malfunction

System wiring diagram

ac8wzw00004581
Inspection item
•  Connectors C-42, C-41
•  Connector C-03
•  Connector C-19
•  Connector C-63
•  Wiring harness between connectors C-42, C-41 and connector C-03
•  Wiring harness between connector C-03 and connector C-19
•  Wiring harness between connector C-19 and connector C-19
•  Wiring harness between connector C-19 and connector C-63


V


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Forward sensing camera (FSC) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between forward sensing camera (FSC) and branch B
•  Forward sensing camera (FSC) malfunction


System wiring diagram

ac8wzw00004582


Inspection item

•  Forward sensing camera (FSC) power supply voltage-related wiring harness and fuse
•  Forward sensing camera (FSC) body ground related wiring harness
•  Forward sensing camera (FSC) connector
•  Wiring harness between forward sensing camera (FSC) terminal M and branch B
•  Wiring harness between forward sensing camera (FSC) terminal N and branch B
•  Forward sensing camera (FSC)


W


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between branch B and connector C-19
•  Open circuit in wiring harness between connector C-19 and connector C-63
•  Connector C-19 malfunction
•  Connector C-63 malfunction


System wiring diagram

ac8wzw00004583


Inspection item

•  Connector C-19
•  Connector C-63
•  Wiring harness between branch B and connector C-19
•  Wiring harness between connector C-19 and connector C-63


X


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  SAS control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between SAS control module and connector C-63
•  Connector C-63 malfunction
•  SAS control module malfunction


System wiring diagram

ac8wzw00004584


Inspection item

Warning
•   Handling the component parts of the SRS air bag system improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components of the SRS air bag system.
(See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
(See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
•  SAS control module power supply voltage-related wiring harness and fuse
•  SAS control module body ground related wiring harness
•  SAS control module connector
•  Connector C-63
•  Wiring harness between SAS control module terminal 3Q and connector C-63
•  Wiring harness between SAS control module terminal 3S and connector C-63
•  SAS control module


Y


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-63 and connector C-64
•  Connector C-63 malfunction
•  Connector C-64 malfunction


System wiring diagram

ac8wzw00004585


Inspection item

•  Connector C-63
•  Connector C-64
•  Wiring harness between connector C-63 and connector C-64


Z


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  EPS control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between EPS control module and connector C-64
•  Connector C-64 malfunction
•  EPS control module malfunction


System wiring diagram

ac8wzw00004586


Inspection item

•  EPS control module power supply voltage-related wiring harness and fuse
•  EPS control module body ground related wiring harness
•  EPS control module connector
•  Connector C-64
•  Wiring harness between EPS control module terminal 2B and connector C-64
•  Wiring harness between EPS control module terminal 2D and connector C-64
•  EPS control module


AA


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Start stop unit power supply voltage or body ground malfunction
•  Open circuit in wiring harness between start stop unit and connector C-64
•  Connector C-64 malfunction
•  Start stop unit malfunction


System wiring diagram

ac8wzw00004587


Inspection item

•  Start stop unit power supply voltage-related wiring harness and fuse
•  Start stop unit body ground related wiring harness
•  Start stop unit connector
•  Connector C-64
•  Wiring harness between start stop unit terminal 2M and connector C-64
•  Wiring harness between start stop unit terminal 2O and connector C-64
•  Start stop unit


AB


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between active driving display and connector C-64
•  Connector C-64 malfunction
•  CAN circuit in active driving display malfunction


System wiring diagram

ac8wzw00004588


Inspection item

•  Active driving display connector
•  Connector C-64
•  Wiring harness between active driving display terminal I and connector C-64
•  Wiring harness between active driving display terminal K and connector C-64
•  Active driving display
―  Between active driving display terminal I and active driving display terminal J
―  Between active driving display terminal K and active driving display terminal L


AC


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Active driving display power supply voltage or body ground malfunction
•  Active driving display malfunction


System wiring diagram

ac8wzw00004589


Inspection item

•  Active driving display power supply voltage-related wiring harness and fuse
•  Active driving display body ground related wiring harness
•  Active driving display


AD


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Instrument cluster power supply voltage or body ground malfunction
•  Open circuit in wiring harness between active driving display and instrument cluster
•  Instrument cluster malfunction
•  CAN circuit in active driving display malfunction


System wiring diagram

ac8wzw00004590


Inspection item

•  Instrument cluster power supply voltage-related wiring harness and fuse
•  Instrument cluster body ground related wiring harness
•  Instrument cluster connector
•  Active driving display connector
•  Wiring harness between active driving display terminal J and instrument cluster terminal 1B
•  Wiring harness between active driving display terminal L and instrument cluster terminal 1D
•  Active driving display
―  Between active driving display terminal I and active driving display terminal J
―  Between active driving display terminal K and active driving display terminal L


AE


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Gateway unit (GWU) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between gateway unit (GWU) and connector C-64
•  Connector C-64 malfunction
•  Gateway unit (GWU) malfunction


System wiring diagram

ac8wzw00004591


Inspection item

•  Gateway unit (GWU) power supply voltage-related wiring harness and fuse
•  Gateway unit (GWU) body ground related wiring harness
•  Gateway unit (GWU) connector
•  Connector C-64
•  Wiring harness between gateway unit (GWU) terminal 3X and connector C-64
•  Wiring harness between gateway unit (GWU) terminal 3W and connector C-64
•  Gateway unit (GWU)