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AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE [AIR BAG SYSTEM]

AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE [AIR BAG SYSTEM]

SM2335881

id0803a3814300

Troubleshooting item

Air bag system warning light does not illuminate
Description
• The air bag system warning light does not turn on even when the ignition is switched ON (engine off or on).
Possible cause
• Air bag system warning light circuit malfunction
• Air bag system warning light (LED) malfunction
• Instrument cluster malfunction
• Communication error between SAS control module and instrument cluster
• SAS control module malfunction

Diagnostic Procedure

Step

Inspection

Action
1
INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER
• Switch the ignition ON (engine off or on).
• Do other warning and indicator lights illuminate?
Yes
Go to the next step.
No
Inspect the instrument cluster power supply system and ground system, then go to Step 3.
2
INSPECT DTCs IN SAS CONTROL MODULE
• Inspect the DTC for the SAS control module on-board diagnostic system. (See DTC INSPECTION.)
• Have DTCs been recorded in memory?
Yes
Perform the applicable DTC inspection, then perform the repair completion verification.
(See DTC TABLE [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM – MEXICO SPEC.)].)
(See DTC TABLE [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.)].)
No
Go to the next step.
3
INSPECT DTCs IN BCM
• Inspect the DTC for the BCM on-board diagnostic system. (See DTC INSPECTION.)
• Have DTCs been recorded in memory?
Yes
Perform the applicable DTC inspection, then perform the repair completion verification.
(See DTC TABLE [BODY CONTROL MODULE (BCM) (US)].)
No
Replace the instrument cluster.
(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
Then perform the repair completion verification.
Repair completion verification
VERIFY THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR
• Switch the ignition off.
• Switch the ignition ON (engine off or on).
• Does the air bag system warning light operate properly?
Yes
Verify that there are no DTCs in the memory. If there are no DTCs, the troubleshooting is completed.
No
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)].)
If the CAN communication is normal, perform the diagnosis from Step 1.