DTC B1913, B1916, B1932, B1934

id080200801700

DTC

B1913

Driver-side air bag module system circuit short to ground

B1916

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

B1932

Driver-side air bag module system resistance high

B1934

Driver-side air bag module system resistance low

DETECTION CONDITION

Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection with only detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure.
• resistance other than 1.5-3.7 ohm detected in driver-side air bag module circuit
• Malfunction in wiring harness between driver-side air bag module and SAS control module

POSSIBLE CAUSE

• Open or short circuit in wiring harness between clock spring and SAS control module
• Clock spring malfunction
• Driver-side air bag module malfunction
• SAS control module malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT DRIVER-SIDE AIR BAG MODULE
• Using the WDS or equivalent, verify the following PID/DATA monitor.
- DS1_STAT
• Is the resistance of the driver-side air bag module normal?
- Resistance: 1.5-3.7 ohm
Yes
Replace the SAS control module.
No
Go to the next step.
2
INSPECT DRIVER-SIDE AIR BAG MODULE CONNECTOR (CLOCK SPRING)
Warning
• Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components.
(See SERVICE WARNINGS.)
(See SERVICE CAUTIONS.)
• Turn the ignition switch to LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Remove the driver-side air bag module.
• Is there any malfunction of the driver-side air bag module connector?
Yes
Replace the air bag wiring harness and/or clock spring.
No
Go to the next step.
3
VERIFY WHETHER MALFUNCTION IS IN DRIVER-SIDE AIR BAG MODULE OR RELATED WIRING HARNESS
• Connect the leads of SST (Fuel and thermometer checker) or apply 2-ohm resistance to driver-side air bag module connector terminals 2A and 2B.
• Set the resistance of SST (Fuel and thermometer checker) to 2-ohm position.
• Connect the negative battery cable.
• Turn the ignition switch to ON position.
• Are DTCs B1916, B1932, B1934 and/or B1936?
Yes
Go to the next step.
No
Replace the driver-side air bag module.
4
INSPECT CLOCK SPRING
• Inspect the clock spring.
• Is the clock spring normal?
Yes
Go to the next step.
No
Replace the clock spring.
5
INSPECT WIRING HARNESS BETWEEN CLOCK SPRING AND SAS CONTROL MODULE
• Turn the ignition switch to LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Remove the column cover.
• Disconnect the clock spring connector.
• Remove the glove compartment.
• Disconnect the passenger-side air bag module connector.
• Disconnect the driver and passenger-side side air bag module connectors.
• Disconnect the driver and passenger-side curtain air bag module connectors.
• Remove the B-pillar lower trim.
• Disconnect the driver and passenger-side pre-tensioner seat belt connectors.
• Turn up floor covering.
• Disconnect the all SAS control module connectors.
• Inspect the wiring harness between SAS control module terminal 1A and clock spring terminal 1L, SAS control module terminal 1D and clock spring terminal 1J for the following:
- Short to ground
- Short to power supply
- Open circuit
• Is the wiring harness normal?
Yes
Replace the SAS control module.
No
Replace the air bag wiring harness.