#
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 (inflator No.1) system circuit short to power supply
B1925 | 21 |  | Passenger-side air bag module (inflator No.1) system circuit short to power supply
B1932 | 19 |  | Driver-side air bag module (inflator No.1) system circuit resistance high
B1933 | 21 |  | Passenger-side air bag module (inflator No.1) system circuit resistance high
B1934 | 19 |  | Driver-side air bag module (inflator No.1) system circuit resistance low
B1935 | 21 |  | Passenger-side air bag module (inflator No.1) system circuit resistance low
B1936 | 19 |  | Driver-side air bag module (inflator No.1) system circuit short to ground
B1938 | 21 |  | Passenger-side air bag module (inflator No.1) 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
B2226 | 42 |  | Crash zone sensor system internal circuit abnormal
B2227 | Crash zone sensor system communication error
B2228 | 19 |  | Driver-side air bag module (inflator No.2) system circuit short to ground
B2229 | 21 |  | Passenger-side air bag module (inflator No.2) system circuit short to ground
B2230 | 19 |  | Driver-side air bag module (inflator No.2) system circuit short to power supply
B2231 | 21 |  | Passenger-side air bag module (inflator No.2) system circuit short to power supply
B2232 | 19 |  | Driver-side air bag module (inflator No.2) system circuit resistance high
B2233 | 21 |  | Passenger-side air bag module (inflator No.2) system circuit resistance high
B2234 | 19 |  | Driver-side air bag module (inflator No.2) system circuit resistance low
B2235 | 21 |  | Passenger-side air bag module (inflator No.2) system circuit resistance low
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 (inflator No.1) 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
DS2_STAT (Driver-side air bag module (inflator No.2) 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 | 2E, 2I
FNT_CRSH_S (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_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 (inflator No.1) 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_DAB2_ST (On demand driver-side air bag module (inflator No.2) 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 | 2E, 2I
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 (inflator No.1) 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_PAB2_ST (On demand passenger-side air bag module (inflator No.2) 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 | 2M, 2Q
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 (inflator No.1) 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
PS2_STAT (Passenger-side air bag module (inflator No.2) 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 | 2M, 2Q
VBATT (Battery voltage) | V | Under any condition: B+ | 2U