NO.1 AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE
id080300800200
1
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Air bag system warning light does not illuminate.
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DETECTION CONDITION
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Malfunction in air bag system warning light circuit (short to ground)
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POSSIBLE CAUSE
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• SAS control module malfunction
• Instrument cluster (print plate) malfunction
• Short to ground circuit wiring harness between instrument cluster and SAS control module
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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---|---|---|---|
1
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INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER
• Turn ignition switch to ON position.
• Do other warning and indicator lights illuminate?
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Yes
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Turn ignition switch to LOCK position, then go to the next step.
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No
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Inspect instrument cluster power supply system and ground system, then go to step 6.
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2
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INSPECT DTCS IN INSTRUMENT CLUSTER
• Inspect the DTC for the SAS control module ON-BOARD DIAGNOSTIC SYSTEM.
• Have DTCs been recorded in memory?
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Yes
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Perform the applicable DTC inspection, then go to step 6.
(See DTC TABLE.)
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No
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Go to the next step.
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3
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INSPECT DTCS IN INSTRUMENT CLUSTER
• Inspect the DTC for the instrument cluster ON-BOARD DIAGNOSTIC SYSTEM.
• Have DTCs been recorded in memory?
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Yes
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Perform the applicable DTC inspection, then go to step 6.
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No
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Go to the next step.
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4
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INSPECT IF MALFUNCTION IS IN SAS CONTROL MODULE OR ELSEWHERE
• 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 front seat connectors. (Vehicles with side air bag module)
• Disconnect the driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag module)
• Remove the B-pillar lower trims.
• Disconnect the driver-side and passenger-side pre-tensioner seat belt connector.
• Turn up floor covering.
• Disconnect the all SAS control module connectors.
• Connect the negative battery cable.
• Turn ignition switch to ON position.
• Do air bag system warning light illuminate?
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Yes
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Replace the SAS control module, then go to step 6.
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No
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Go to the next step.
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5
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INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR ELSEWHERE
• Turn the ignition switch to ON position.
• Measure the voltage between following instrument cluster terminal and GND.
• Are the terminal voltages normal?
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Yes
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Inspect the instrument cluster by input/output check mode No. 26.
Then go to the next step.
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No
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Repair or replace for open or short circuit, then go to the next step.
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6
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INSPECT IF MALFUNCTION IS IN SAS CONTROL MODULE OR ELSEWHERE
• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Connect the all SAS control module connectors.
• Connect the driver-side and passenger-side pre-tensioner seat belt connector.
• Connect the driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag module)
• Connect the front seat connectors. (Vehicles with side air bag module)
• Connect the passenger-side air bag module connector.
• Connect the clock spring connector.
• Connect the negative battery cable.
• Turn ignition switch to ON position.
• Does air bag system warning light operate properly?
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Yes
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Replace the SAS control module, then go to step 6.
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No
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Go to the next step.
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