NO.1 AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE
id080300800200
1
|
Air bag system warning light does not illuminate.
|
DETECTION CONDITION
|
Malfunction in air bag system warning light circuit (short to ground)
|
POSSIBLE CAUSE
|
• SAS control module malfunction
• Instrument cluster (circuit board) malfunction
• Short to ground circuit in wiring harness between instrument cluster and SAS control module
|
Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
|
---|---|---|---|
1
|
INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER
• Turn the engine switch to the ON position.
• Do other warning and indicator lights illuminate?
|
Yes
|
Turn the engine switch to the LOCK position, then go to the next step.
|
No
|
Inspect instrument cluster power supply system and ground system the, then go to Step 4.
|
||
2
|
INSPECT SAS CONTROL MODULE
• Turn the engine switch to 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 driver and passenger‐side seat connectors.
• Disconnect the driver‐ and passenger‐side pre‐tensioner seat belt connectors.
• Remove the console.
• Disconnect all SAS control module connectors.
• Connect the negative battery cable.
• Turn the engine switch to ON position.
• Does the air bag system warning light illuminate?
|
Yes
|
Replace the SAS control module, then go to Step 4.
|
No
|
Go to the next step.
|
||
*3
|
INSPECT WIRING HARNESS BETWEEN SAS CONTROL MODULE AND INSTRUMENT CLUSTER FOR SHORT TO GROUND
• Turn the engine switch to LOCK position.
• Disconnect the negative battery cable.
• Disconnect the instrument cluster connector.
• Is there continuity between terminal 1H of the instrument cluster connector and ground?
|
Yes
|
Replace the wiring harness, then go to Step 4.
|
No
|
Replace the instrument cluster, then go to the next step.
|
||
4
|
CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR
• Turn the engine switch to LOCK position.
• Disconnect the negative battery cable and wait for 1 min or more.
• Connect all SAS control module connectors.
• Connect the driver and passenger-side
pre-tensioner seat belt connectors.
• Connect the driver and passenger‐side seat connectors.
• Connect the passenger‐side air bag module connector.
• Connect the clock spring connector.
• Connect the negative battery cable.
• Turn the engine switch to ON position.
• Does the air bag system warning light operate properly?
|
Yes
|
Complete troubleshooting, then explain repairs to customer.
|
No
|
Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.
|