Diagnostic procedure
STEP
|
INSPECTION
|
ACTION
|
|
---|---|---|---|
1
|
INSPECT FOR CONTINUITY BETWEEN BATTERY FUSE AND INSTRUMENT CLUSTER
• Turn the ignition switch to the ON position.
• Measure the voltage at instrument cluster connector terminal 2K.
• Is the voltage 9 V or more?
|
Yes
|
Go to the next step.
|
No
|
Repair the related wiring harness.
|
||
2
|
INSPECT WIRING HARNESS BETWEEN INSTRUMENT CLUSTER AND SAS UNIT
• 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 driver and passenger-side curtain air bag module connectors.
• Disconnect the driver and passenger-side side air bag module connectors.
• Remove the rear door lower trim.
• Disconnect the driver and passenger-side pre-tensioner seat belt connectors.
• Partially peel back the floor covering.
• Disconnect the SAS unit connector.
• Disconnect the instrument cluster connector.
• Inspect the wiring harness between SAS unit terminal 1T and instrument cluster terminal 2K for the following:
• Is the wiring harness normal?
|
Yes
|
Go to the next step.
|
No
|
Replace the air bag wiring harness.
|
||
4
|
INSPECT AIR BAG SYSTEM WARNING LIGHT
• Connect the instrument cluster connector.
• Turn the ignition switch to the ON position.
• Does the air bag system warning light illuminate?
|
Yes
|
Go to the next step.
|
No
|
Replace the instrument cluster.
|
||
5
|
INSPECT AIR BAG SYSTEM WARNING LIGHT
• Ground instrument cluster connector terminal 2K to the body using a jumper wire.
• Does the air bag system warning light go out?
|
Yes
|
[Present malfunction diagnosis]
• Replace the SAS unit.
[Past malfunction diagnosis]
• DTC troubleshooting completed.
|
No
|
Replace the instrument cluster.
|