ON-BOARD DIAGNOSTIC FUNCTION

id080200100500

Self-Malfunction Diagnostic Function

• The self-malfunction diagnosis function determines that there is a malfunction, outputs a signal as a DTC to the DLC-2, and at the same time, flashes the air bag system warning light to advise the driver of a malfunction.
• The air bag system warning light illuminates or flashes to indicate a single DTC according to the present malfunction. (If there is more than one present malfunction, only one DTC will be displayed according to the preset priority ranking.)
• The air bag system warning light will flash the DTC pattern for five cycles, and then will remain illuminated until the ignition switch is turned to the LOCK position.
• If both of the driver-side air bag module connectors are disconnected when the SAS control module configuration is performed, the air bag system warning light will flash. Approx. 15 s after the connectors are properly reconnected, the light will go out.
• The self-malfunction diagnostic function consists of two functions: present malfunction diagnostic and past malfunction diagnostic.

DTC table

DTC

Malfunction location

WDS display

Air bag system warning light

B1231
13

SAS control module activation (deployment) control freeze
B1317
-
Continuously illuminated
The power supply voltage increases (16.1 V or more).
B1318
-
Continuously illuminated
The power supply voltage decreases (less than 9 V).
B1342
12

SAS control module
-
Continuously illuminated
SAS control module (DTC 12 detection circuit malfunction)
B1869
-
Continuously illuminated
Air bag system warning light system circuit open
-
Does not illuminate
Air bag system warning light system circuit short to ground
B1870
-
Continuously illuminated
Air bag system warning light system circuit short to power supply
B1877
33

Driver-side pre-tensioner seat belt system circuit resistance high
B1878
Driver-side pre-tensioner seat belt system circuit short to power supply
B1879
Driver-side pre-tensioner seat belt system circuit short to ground
B1881
34

Passenger-side pre-tensioner seat belt system circuit resistance high
B1882
Passenger-side pre-tensioner seat belt system circuit short to power supply
B1883
Passenger-side pre-tensioner seat belt system circuit short to ground
B1885
33

Driver-side pre-tensioner seat belt system circuit resistance low
B1886
34

Passenger-side pre-tensioner seat belt system circuit resistance low
B1916
19

Driver-side air bag module system circuit short to power supply
B1925
21

Passenger-side air bag module system circuit short to power supply
B1932
19

Driver-side air bag module system circuit resistance high
B1933
21

Passenger-side air bag module system circuit resistance high
B1934
19

Driver-side air bag module system circuit resistance low
B1935
21

Passenger-side air bag module system circuit resistance low
B1936
19

Driver-side air bag module system circuit short to ground
B1938
21

Passenger-side air bag module system circuit short to ground
B1992
22

Driver-side side air bag module circuit short to power supply
B1993
Driver-side side air bag module circuit short to body ground
B1994
Driver-side side air bag module circuit resistance high
B1995
Driver-side side air bag module circuit resistance low
B1996
23

Passenger-side side air bag module circuit short to power supply
B1997
Passenger-side side air bag module circuit short to body ground
B1998
Passenger-side side air bag module circuit resistance high
B1999
Passenger-side side air bag module circuit resistance low
B2228
19

Driver-side air bag module assembly incorrect
B2230
B2232
B2234
B2229
21

Passenger-side air bag module assembly incorrect
B2231
B2233
B2235
B2444
43

Driver-side side air bag sensor internal circuit malfunction
B2445
44

Passenger-side side air bag sensor internal circuit malfunction
B2477
54

Configuration error
B2773
24

Driver-side curtain air bag module circuit resistance low
B2774
Driver-side curtain air bag module circuit resistance high
B2775
Driver-side curtain air bag module circuit short to body ground
B2776
Driver-side curtain air bag module circuit short to power supply
B2777
25

Passenger-side curtain air bag module circuit resistance low
B2778
Passenger-side curtain air bag module circuit resistance high
B2779
Passenger-side curtain air bag module circuit short to body ground
B2780
Passenger-side curtain air bag module circuit short to power supply
U2017
43

Driver-side side air bag sensor communication error
U2018
44

Passenger-side side air bag sensor communication error

PID/Data Monitoring Function

• By using the PID/data monitoring function, the monitored item of the input/output signal, as set on the SAS control module, can be freely selected and read out in real-time.
• A WDS or equivalent is used to read out PID/data monitor information.

PID/data monitor table

PID name (Definition)

Unit/State

Detection state

SAS control module terminal

CCNT_RCM
(Number of continuous DTCs)
-
• DTC is detected: 1-255
• DTC is not detected: 0
-
D_CRSH_S
(Driver-side side air bag sensor state)
OK/
COMM FAIL/
INT FAIL
• Sensor normal: OK
• Sensor communication error: COMM FAIL
• Sensor internal circuit abnormal: INT FAIL
1S, 1R
D_PTENSFLT
(Driver-side pre-tensioner seat belt circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1E, 1I
DS_AB_ST
(Driver-side side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1M, 1Q
DS_CURT_ST
(Driver-side curtain air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1C, 1G
DSB_P_ST
(Driver-side pre-tensioner seat belt circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1E, 1I
DS1_STAT
(Driver-side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
2J, 2N
OD_D_CRSH
(On demand driver-side side air bag sensor state)
OK/
COMM FAIL/
INT FAIL
• Sensor normal: OK
• Sensor communication error: COMM FAIL
• Sensor internal circuit abnormal: INT FAIL
1R, 1S
OD_D_CURT
(On demand driver-side curtain air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1C, 1G
OD_DAB1_ST
(On demand driver-side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
2J, 2N
OD_DSAB_ST
(On demand driver-side side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1M, 1Q
OD_F_CRSH
(On demand crash zone sensor state)
OK/
COMM FAIL/
INT FAIL
• Sensor normal: OK
• Sensor communication error: COMM FAIL
• Sensor internal circuit abnormal: INT FAIL
1J, 1K
OD_P_CRSH
(On demand passenger-side side air bag sensor state)
OK/
COMM FAIL/
INT FAIL
• Sensor normal: OK
• Sensor communication error: COMM FAIL
• Sensor internal circuit abnormal: INT FAIL
1N, 1O
OD_P_CURT
(On demand passenger-side curtain air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1D, 1H
OD_PAB1_ST
(On demand passenger-side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
2R, 2V
OD_PSAB_ST
(On demand passenger-side side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1P, 1T
P_CRSH_S
(Passenger-side side air bag sensor state)
OK/
COMM FAIL/
INT FAIL
• Sensor normal: OK
• Sensor communication error: COMM FAIL
• Sensor internal circuit abnormal: INT FAIL
1N, 1O
P_PTESFLT
(Passenger-side pre-tensioner seat belt circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1A, 1B
PS_AB_ST
(Passenger-side side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1P, 1T
PS_CURT_ST
(Passenger-side curtain air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1D, 1H
PSB_P_ST
(Passenger-side pre-tensioner seat belt circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
1A, 1B
PS1_STAT
(Passenger-side air bag module circuit state)
SHRT GND/
SHRT B+/
OPEN/
SQ_LOWRES/
NORMAL
• Related wiring harness short to ground: SHRT GND
• Related wiring harness short to power supply: SHRT B+
• Related wiring harness circuit open: OPEN
• Pre-tensioner seat belt circuit resistance low: SQ_LOWRES
• Related wiring harness normal: NORMAL
2R, 2V
VBATT
(Battery voltage)
V
Under any condition: B+
2U