DTC B1058, B2228, B2230, B2232, B2234 [TWO-STEP DEPLOYMENT CONTROL SYSTEM]

id0802b2809600

DTC

B1058

Driver-side air bag module (inflator No.2) and other air bag module circuits short

B2228

Driver-side air bag module (inflator No.2) circuit short to body ground

B2230

Driver-side air bag module (inflator No.2) circuit short to power supply

B2232

Driver-side air bag module (inflator No.2) circuit resistance high

B2234

Driver-side air bag module (inflator No.2) circuit resistance low

DETECTION CONDITION

Warning
• Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the 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 ohms detected in driver-side air bag module (inflator No.2) circuit
• Malfunction in wiring harness between driver-side air bag module (inflator No.2) 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 (inflator No.2) malfunction
• SAS control module malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT DRIVER-SIDE AIR BAG MODULE (INFLATOR NO.2)
• Using the WDS or equivalent, verify the following PID/DATA monitor.
- D_ABAGR2
• Is the resistance of the driver-side air bag module normal?
- Resistance: 1.5-3.7 ohms
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 front buckles, 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 the LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Disconnect the driver-side air bag module connector.
• 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 (INFLATOR NO.2) OR RELATED WIRING HARNESS
• Connect the leads of the SST (Fuel and thermometer checker) or apply 2-ohm resistance to driver-side air bag module (inflator No.1) connector terminals 2A and 2B, and driver-side air bag module (inflator No.2) connector terminals 3A and 3B.
• Set the resistance of the SST (Fuel and thermometer checker) to the 2-ohm position.
• Connect the negative battery cable.
• Turn the ignition switch to the ON position.
• Are DTCs B1058, B2228, B2230, B2232 and/or B2234 indicated?
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 the 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 front seat connectors.
• Disconnect the driver and passenger-side curtain air bag module connectors.
• Remove the console.
• Disconnect the SAS control module connector.
• Inspect the wiring harness between SAS control module terminal 1Q and clock spring terminal 1H, SAS control module terminal 1U and clock spring terminal 1F 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.