NO.2 AIR BAG SYSTEM WARNING LIGHT ILLUMINATES CONSTANTLY

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NO.2 AIR BAG SYSTEM WARNING LIGHT ILLUMINATES CONSTANTLY

B3E080301046W03

2 | Air bag system warning light illuminates constantly.
DETECTION CONDITION | Malfunction in air bag system warning light circuit
POSSIBLE CAUSE | • SAS control module malfunction • Instrument cluster (circuit board) malfunction • CAN communication network malfunction

## Diagnostic Procedure

• When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunction. If there is a problem, verify that the connectors, terminals and wiring harness are connected correctly and undamaged.

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY DTC IN SAS CONTROL MODULE MEMORY • Have DTCs been record in the memory? | Yes | Perform inspection using appropriate DTC.
No | Inspect the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION) If the instrument cluster is normal, go to the next step. If the instrument cluster has a malfunction, replace the instrument cluster.
2 | INSPECT AIR BAG SYSTEM WARNING LIGHT CIRCUIT IN INSTRUMENT CLUSTER • Turn the ignition switch to the ON position. • Does air bag system warning light go out? | Yes | Inspect the connectors and terminals of the SAS control module. Repair or replace if necessary.
No | Go to the next step.
* 3 | INSPECT SAS CONTROL MODULE • Disconnect the SAS control module connector. • Turn the ignition switch to the ON position. • Verify the voltage at terminal 1D. • Is the voltage B+? | Yes | Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No | Inspect the battery power supply circuit and ground circuit.