System malfunction location

• Invalid signal to air bag system warning light

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.

• Air bag system warning light illumination request sent from SAS control module does not correspond to air bag system warning light illumination status in instrument cluster

Fail-safe function

Not applicable

Possible cause

• Instrument cluster assembly incorrect

• Instrument cluster malfunction

• SAS control module malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Clear the DTC for the SAS control module using the M-MDS.

  (See CLEARING DTC [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)].)

• Perform the DTC inspection for the SAS control module using the M-MDS.

  (See DTC INSPECTION [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)].)

• Is DTC U0001:88 or U0155:00 displayed?

Yes

Perform the applicable DTC inspection.

No

Go to the next step.

2

• Verify that the instrument cluster is correctly installed.

• Is the instrument cluster correctly installed?

Yes

Go to the next step.

No

Correctly install the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

Then go to the next step.

3

• Perform the active command mode inspection for the instrument cluster using the M-MDS.

  (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

• WL+IL

  (See ACTIVE COMMAND MODES TABLE [INSTRUMENT CLUSTER].)

• Does the air bag system warning light illuminate?

Yes

Go to the next step.

No

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

Then go to the next step.

4

• Clear the DTC for the SAS control module using the M-MDS.

  (See CLEARING DTC [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)].)

• Perform the DTC inspection for the SAS control module using the M-MDS.

  (See DTC INSPECTION [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)].)

• Is the same DTC present?

Yes

Replace the SAS control module.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].)

No

DTC troubleshooting completed.