DETERMINING OPEN CIRCUIT LOCATION (HS-CAN) [SKYACTIV-G 1.5/2.0/2.5, SKYACTIV-D 1.5 (MTX), SKYACTIV-D 2.2 (MTX) (L.H.D.)]

id100242000400

Caution
•  Perform the following malfunction diagnosis only when it is diagnosed with a open circuit by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 1.5/2.0/2.5, SKYACTIV-D 1.5 (MTX), SKYACTIV-D 2.2 (MTX) (L.H.D.)].)
•  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 failed module on the M-MDS screen.

2.  Apply the communication error DTC and the failed module to 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.)

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

4.  After repairs, return to CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW, and verify that the repairs have been completed. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 1.5/2.0/2.5, SKYACTIV-D 1.5 (MTX), SKYACTIV-D 2.2 (MTX) (L.H.D.)].)


DTC Output Pattern And Malfunctioning Location

Cross (×): Communication error-related DTC and failed module

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
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
  
 
 
 
 
U0298:00
 
 
 
 
 
×
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
ABS
(DSC HU/CM)
U0100:00
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0101:00
 
 
 
 
 
 
 
×
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0104:00
 
 
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
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
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
  
 
 
 
 
AFS/ALM*2
(Adaptive LED headlights control module)
U0100:00
×
 
 
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
 
 
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
U023A:00
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
  
 
 
 
 
AFS/ALM*3
(AFS control module / auto leveling control module)
U0100:00
×
 
 
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
 
 
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
DCDC*4
(DC-DC converter (i-ELOOP))
U0100:00
×
 
 
×
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
TCM*5
(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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
U0182:00
 
 
 
 
×
 
×
 
×
 
 
 
 
 
 
 
 
 
  
 
 
 
 
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
U023A:00
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
 
 
  
 
 
 
 
FSC*6
(Forward sensing camera (FSC))
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
 
 
 
 
 
 
  
 
 
 
 
U0104:00
 
 
×
×
 
 
×
 
×
 
×
 
 
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
 
 
 
 
 
 
  
 
 
 
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
 
 
  
 
 
 
 
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
×
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
U0156:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
×
 
  
 
 
 
 
U0182:00
 
 
 
 
×
 
×
 
×
 
×
 
 
 
 
 
 
 
  
 
 
 
 
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
EPS
(EPS control module
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
SSU
(Start stop unit)
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0101:00
 
 
 
 
 
 
 
×
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:87
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
×
 
×
 
 
 
 
 
  
 
 
 
 
U0146:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
×
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
CMU*7
(Connectivity master unit (CMU))
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0101:00
 
 
 
 
 
 
 
×
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0104:00
 
 
×
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
×
 
×
 
 
 
 
 
  
 
 
 
 
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
×
 
 
×
U0182:00
 
 
 
 
×
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
U0235:00
 
 
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
  
 
 
 
 
U023A:00
 
 
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
  
 
 
 
 
RCM
(SAS control module)
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
×
 
 
×
DCM*8
(MAZDA ERA-GLONASS control module)
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
×
 
 
×
EPB*10
(Electric parking brake control module)
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0101:00
 
 
 
 
 
 
 
×
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
  
 
 
 
 
U0155:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
×
IC
(Instrument cluster)
U0100:00
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0101:00
 
 
 
 
 
 
 
×
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0104:00
 
 
×
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0121:00
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0128:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
×
 
U0131:00
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
U0140:00
 
 
 
 
 
 
 
 
 
×
×
 
×
 
 
 
 
 
  
 
 
 
 
U0151:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
  
 
 
 
 
U0156:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
  
 
 
 
 
U0182:00
 
 
 
 
×
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
U0214:00
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
U0235:00
 
 
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
  
 
 
 
 
U023A:00
 
 
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
  
 
 
 
 
M-MDS display module
[Fail] display pattern
PCM
×
 
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
ABS
 
×
 
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
SBS/MRCC*1
 
 
×
×
 
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
AFS/ALM*2, *3
 
 
 
 
×
 
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
DCDC*4
 
 
 
 
 
×
×
 
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
TCM*5
 
 
 
 
 
 
 
×
×
 
×
 
×
 
 
 
 
 
  
 
 
 
 
F_BCM
 
 
 
 
 
 
 
 
 
×
×
 
×
 
 
 
 
 
  
 
 
 
 
FSC*6
 
 
 
 
 
 
 
 
 
 
 
×
×
 
 
 
 
 
  
 
 
 
 
EPS
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
 
  
 
 
 
 
SSU
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
 
  
 
 
 
 
CMU*7
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
×
 
  
 
 
 
 
RCM
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
×
  
 
 
 
 
DCM*8
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
×
      
 
AM*9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
×
 
 
EPB*10
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
×
 
IC
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
×
 
 
  
×
 
 
×
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

*1  :With Mazda Radar Cruise Control (MRCC) system
*2  :With adaptive LED headlights system
*3  :With AFS system / headlight auto leveling system
*4  :With i-ELOOP
*5  :ATX
*6  :With forward sensing camera (FSC)
*7  :With center display
*8  :With MAZDA ERA-GLONASS
*9  :With Bose® type audio
*10  :With electric parking brake control module (EPB)

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-60
•  Connector C-60 malfunction
•  PCM malfunction


System wiring diagram

am3zzw00019515


Inspection item

•  PCM power supply voltage-related wiring harness and fuse
•  PCM body ground related wiring harness
•  PCM connector
•  Connector C-60
•  Wiring harness between PCM terminal 2AK and connector C-60 (SKYACTIV-G 1.5, 2.0, 2.5, SKYACTIV-D 2.2)
•  Wiring harness between PCM terminal 2AL and connector C-60 (SKYACTIV-G 1.5, 2.0, 2.5, SKYACTIV-D 2.2)
•  Wiring harness between PCM terminal 2C and connector C-60 (SKYACTIV-D 1.5)
•  Wiring harness between PCM terminal 2D and connector C-60 (SKYACTIV-D 1.5)
•  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-60
•  Connector C-60 malfunction
•  DSC HU/CM malfunction


System wiring diagram

am3zzw00019516


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-60
•  Wiring harness between DSC HU/CM terminal AF and connector C-60
•  Wiring harness between DSC HU/CM terminal AC and connector C-60
•  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-60
•  Connector C-60 malfunction
•  Radar unit malfunction


System wiring diagram

am3zzw00019517


Inspection item

•  Radar unit power supply voltage-related wiring harness and fuse
•  Radar unit body ground related wiring harness
•  Radar unit connector
•  Connector C-60
•  Wiring harness between radar unit terminal D and connector C-60
•  Wiring harness between radar unit terminal C and connector C-60
•  Radar unit


D


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-60 and connector C-32
•  Connector C-60 malfunction
•  Connector C-32 malfunction


System wiring diagram

am3zzw00019518


Inspection item

•  Connector C-60
•  Connector C-32
•  Wiring harness between connector C-60 and connector C-32


E


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  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 AFS control module / auto leveling control module / adaptive LED headlights control module and connector C-32
•  Connector C-32 malfunction
•  AFS control module / auto leveling control module / adaptive LED headlights control module malfunction


System wiring diagram

am3zzw00019519


Inspection item

•  AFS control module / auto leveling control module / adaptive LED headlights control module power supply voltage-related wiring harness and fuse
•  AFS control module / auto leveling control module / adaptive LED headlights control module body ground related wiring harness
•  AFS control module / auto leveling control module / adaptive LED headlights control module connector
•  Connector C-32
•  Wiring harness between AFS control module / auto leveling control module / adaptive LED headlights control module terminal A and connector C-32
•  Wiring harness between AFS control module / auto leveling control module / adaptive LED headlights control module terminal B and connector C-32
•  AFS control module / auto leveling control module / adaptive LED headlights control module


F


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  DC-DC converter (i-ELOOP) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between DC-DC converter (i-ELOOP) and connector C-05
•  Open circuit in wiring harness between connector C-05 and connector C-32
•  Connector C-05 malfunction
•  Connector C-32 malfunction
•  DC-DC converter (i-ELOOP) malfunction


System wiring diagram

am3zzw00019520


Inspection item

•  DC-DC converter (i-ELOOP) power supply voltage-related wiring harness and fuse
•  DC-DC converter (i-ELOOP) body ground related wiring harness
•  DC-DC converter (i-ELOOP) connector
•  Connector C-05
•  Connector C-32
•  Wiring harness between DC-DC converter (i-ELOOP) terminal 1A and connector C-05
•  Wiring harness between DC-DC converter (i-ELOOP) terminal 1C and connector C-05
•  Wiring harness between connector C-05 and connector C-32
•  DC-DC converter (i-ELOOP)


G


ATX

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-32 and connector C-01
•  Open circuit in wiring harness between connector C-01 and branch A
•  Connector C-32 malfunction
•  Connector C-01 malfunction

System wiring diagram

am3zzw00019521
Inspection item
•  Connector C-32
•  Connector C-01
•  Wiring harness between connector C-32 and connector C-01
•  Wiring harness between connector C-01 and branch A


MTX

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-32 and connector C-01
•  Open circuit in wiring harness between connector C-01 and connector C-01
•  Open circuit in wiring harness between connector C-01 and front body control module (FBCM)
•  Connector C-32 malfunction
•  Connector C-01 malfunction
•  CAN circuit in front body control module (FBCM) malfunction

System wiring diagram

am3zzw00019522
Inspection item
•  Front body control module (FBCM) connector
•  Connector C-01
•  Connector C-32
•  Wiring harness between connector C-32 and connector C-01
•  Wiring harness between connector C-01 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 2R and front body control module (FBCM) terminal 2P
―  Between front body control module (FBCM) terminal 2L and front body control module (FBCM) terminal 2N


H


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

am3zzw00019523


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
•  TCM


I


Possible cause

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


System wiring diagram

am3zzw00019524


Inspection item

•  Front body control module (FBCM) connector
•  Connector C-01
•  Wiring harness between branch A 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 2R and front body control module (FBCM) terminal 2P
―  Between front body control module (FBCM) terminal 2L and front body control module (FBCM) terminal 2N


J


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

am3zzw00019525


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)


K


With forward sensing camera (FSC)

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between front body control module (FBCM) and connector C-03
•  Open circuit in wiring harness between connector C-03 and connector C-12
•  Open circuit in wiring harness between connector C-12 and branch B
•  Connector C-03 malfunction
•  Connector C-12 malfunction
•  CAN circuit in front body control module (FBCM) malfunction

System wiring diagram

am3zzw00019526
Inspection item
•  Front body control module (FBCM) connector
•  Connector C-03
•  Connector C-12
•  Wiring harness between front body control module (FBCM) terminal 2P and connector C-03
•  Wiring harness between front body control module (FBCM) terminal 2N and connector C-03
•  Wiring harness between connector C-03 and connector C-12
•  Wiring harness between connector C-12 and branch B
•  Front body control module (FBCM)
―  Between front body control module (FBCM) terminal 2R and front body control module (FBCM) terminal 2P
―  Between front body control module (FBCM) terminal 2L and front body control module (FBCM) terminal 2N


Without forward sensing camera (FSC)

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between front body control module (FBCM) and connector C-03
•  Open circuit in wiring harness between connector C-03 and connector C-12
•  Open circuit in wiring harness between connector C-12 and connector C-12
•  Open circuit in wiring harness between connector C-12 and connector C-33
•  Connector C-03 malfunction
•  Connector C-12 malfunction
•  Connector C-33 malfunction
•  CAN circuit in front body control module (FBCM) malfunction

System wiring diagram

am3zzw00019527
Inspection item
•  Front body control module (FBCM) connector
•  Connector C-03
•  Connector C-12
•  Connector C-33
•  Wiring harness between front body control module (FBCM) terminal 2P and connector C-03
•  Wiring harness between front body control module (FBCM) terminal 2N and connector C-03
•  Wiring harness between connector C-03 and connector C-12
•  Wiring harness between connector C-12 and connector C-12
•  Wiring harness between connector C-12 and connector C-33
•  Front body control module (FBCM)
―  Between front body control module (FBCM) terminal 2R and front body control module (FBCM) terminal 2P
―  Between front body control module (FBCM) terminal 2L and front body control module (FBCM) terminal 2N


L


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

am3zzw00019528


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)


M


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between branch B and connector C-12
•  Open circuit in wiring harness between connector C-12 and connector C-33
•  Connector C-12 malfunction
•  Connector C-33 malfunction


System wiring diagram

am3zzw00019529


Inspection item

•  Connector C-12
•  Connector C-33
•  Wiring harness between branch B and connector C-12
•  Wiring harness between connector C-12 and connector C-33


N


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-33
•  Connector C-33 malfunction
•  EPS control module malfunction


System wiring diagram

am3zzw00019530


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-33
•  Wiring harness between EPS control module terminal 2B and connector C-33
•  Wiring harness between EPS control module terminal 2D and connector C-33
•  EPS control module


O


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-33
•  Connector C-33 malfunction
•  Start stop unit malfunction


System wiring diagram

am3zzw00019531


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-33
•  Wiring harness between start stop unit terminal 2M and connector C-33
•  Wiring harness between start stop unit terminal 2O and connector C-33
•  Start stop unit


P


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Connector C-33 malfunction
•  Connector C-34 malfunction
•  JB No.2 malfunction


System wiring diagram

am3zzw00019532


Inspection item

•  Connector C-33
•  Connector C-34
•  JB No.2


Q


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Connectivity master unit (CMU) power supply voltage or body ground malfunction
•  Open circuit in wiring harness between connectivity master unit (CMU) and connector C-34
•  Connector C-34 malfunction
•  Connectivity master unit (CMU) malfunction


System wiring diagram

am3zzw00019533


Inspection item

•  Connectivity master unit (CMU) power supply voltage-related wiring harness and fuse
•  Connectivity master unit (CMU) body ground related wiring harness
•  Connectivity master unit (CMU) connector
•  Connector C-34
•  Wiring harness between connectivity master unit (CMU) terminal 2E and connector C-34
•  Wiring harness between connectivity master unit (CMU) terminal 2F and connector C-34
•  Connectivity master unit (CMU)


R


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-34
•  Connector C-34 malfunction
•  SAS control module malfunction


System wiring diagram

am3zzw00019534


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.)
(See AIR BAG SYSTEM SERVICE CAUTIONS.)
•  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-34
•  Wiring harness between SAS control module terminal 3B and connector C-34
•  Wiring harness between SAS control module terminal 3C and connector C-34
•  SAS control module


S


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  MAZDA ERA-GLONASS control module power supply voltage or body ground malfunction
•  Open circuit in wiring harness between connector C-34 and connector C-62
•  Open circuit in wiring harness between MAZDA ERA-GLONASS control module and connector C-62
•  Connector C-34 malfunction
•  Connector C-62 malfunction
•  MAZDA ERA-GLONASS control module malfunction


System wiring diagram

am3zzw00020412


Inspection item

•  MAZDA ERA-GLONASS control module power supply voltage-related wiring harness and fuse
•  MAZDA ERA-GLONASS control module body ground related wiring harness
•  MAZDA ERA-GLONASS control module connector
•  Connector C-34
•  Connector C-62
•  Wiring harness between connector C-34 and connector C-62
•  Wiring harness between MAZDA ERA-GLONASS control module terminal 1Q and connector C-62
•  Wiring harness between MAZDA ERA-GLONASS control module terminal 1S and connector C-62
•  MAZDA ERA-GLONASS control module


T


With Bose® type audio or with electric parking brake (EPB)

Possible cause
•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Open circuit in wiring harness between connector C-34 and connector C-09
•  Open circuit in wiring harness between connector C-09 and connector C-40
•  Connector C-34 malfunction
•  Connector C-09 malfunction
•  Connector C-40 malfunction

System wiring diagram

am3zzw00019535
Inspection item
•  Connector C-34
•  Connector C-09
•  Connector C-40
•  Wiring harness between connector C-34 and connector C-09
•  Wiring harness between connector C-09 and connector C-40


Without Bose® type audio and electric parking brake (EPB)

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 connector C-34 and connector C-09
•  Open circuit in wiring harness between connector C-09 and connector C-09
•  Open circuit in wiring harness between connector C-09 and connector instrument cluster
•  Connector C-34 malfunction
•  Connector C-09 malfunction
•  Instrument cluster malfunction

System wiring diagram

am3zzw00019536
Inspection item
•  Instrument cluster power supply voltage-related wiring harness and fuse
•  Instrument cluster body ground related wiring harness
•  Connector C-34
•  Connector C-09
•  Instrument cluster connector
•  Wiring harness between connector C-34 and connector C-09
•  Wiring harness between connector C-09 and connector C-09
•  Wiring harness between instrument cluster terminal B and connector C-09
•  Wiring harness between instrument cluster terminal D and connector C-09
•  Instrument cluster


U


Possible cause

•  Connector terminal disconnection, poor contact, damage, deformation, corrosion
•  Audio amplifier power supply voltage or body ground malfunction
•  Open circuit in wiring harness between audio amplifier and connector C-40
•  Connector C-40 malfunction
•  Audio amplifier malfunction


System wiring diagram

am3zzw00019537


Inspection item

•  Audio amplifier power supply voltage-related wiring harness and fuse
•  Audio amplifier body ground related wiring harness
•  Audio amplifier connector
•  Connector C-40
•  Wiring harness between audio amplifier terminal 2L and connector C-40
•  Wiring harness between audio amplifier terminal 2N and connector C-40
•  Audio amplifier


V


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 connector C-40
•  Connector C-40 malfunction
•  Electric parking brake control module malfunction


System wiring diagram

am3zzw00019538


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
•  Connector C-40
•  Wiring harness between electric parking brake control module terminal AD and connector C-40
•  Wiring harness between electric parking brake control module terminal AB and connector C-40
•  Electric parking brake control module


W


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 connector C-40 and connector C-09
•  Open circuit in wiring harness between connector C-09 and connector instrument cluster
•  Connector C-40 malfunction
•  Connector C-09 malfunction
•  Instrument cluster malfunction


System wiring diagram

am3zzw00019539


Inspection item

•  Instrument cluster power supply voltage-related wiring harness and fuse
•  Instrument cluster body ground related wiring harness
•  Instrument cluster connector
•  Connector C-40
•  Connector C-09
•  Wiring harness between connector C-40 and connector C-09
•  Wiring harness between instrument cluster terminal B and connector C-09
•  Wiring harness between instrument cluster terminal D and connector C-09
•  Instrument cluster