DTC

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—4.7 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

STEP

INSPECTION

ACTION

1

• Using the M-MDS, verify the following PID/DATA monitor.

  (See PID/DATA MONITOR TABLE.)

• RES_AB2_D

• Is the resistance of the driver-side air bag module normal?

• Resistance: 1.5—4.7 ohms

Yes

Replace the SAS control module.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

2

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 AIR BAG SYSTEM SERVICE WARNINGS.)

  (See AIR BAG SYSTEM SERVICE CAUTIONS.)

• Turn the ignition switch to the LOCK position.

• Remove the battery cover.

• Disconnect the negative battery cable and wait for 1 min or more.

  (See BATTERY REMOVAL/INSTALLATION [LF].

• 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.

No

Go to the next step.

3

• 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 B2228, B2230, B2232 and/or B2234 indicated?

Yes

Go to the next step.

No

Replace the driver-side air bag module.

(See DRIVER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION.)

4

• Inspect the clock spring.

  (See CLOCK SPRING INSPECTION.)

• Is the clock spring normal?

Yes

Go to the next step.

No

Replace the clock spring.

(See CLOCK SPRING REMOVAL/INSTALLATION.)

5

• Turn the ignition switch to the LOCK position.

• Remove the battery cover.

• Disconnect the negative battery cable and wait for 1 min or more.

  (See BATTERY REMOVAL/INSTALLATION [LF].)

• Remove the column cover.

• Disconnect the clock spring connector.

• Remove the glove compartment.

• Disconnect the passenger-side air bag module connector.

  (See PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION.)

• Disconnect the driver and passenger-side seat connectors.

• Remove the back trim.

• Disconnect the driver and passenger-side pre-tensioner seat belt connectors.

• Disconnect the SAS control module connector.

• Inspect the wiring harness between SAS control module terminal 1G and clock spring terminal 1H, SAS control module terminal 1J 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.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)

No

Replace the air bag wiring harness.