STEP
INSPECTION
ACTION
1
INSPECT GEM FOR SHORT TO GROUND
Disconnect the GEM connector.
Does the light go out?
Yes
Go to Step 4.
No
Go to the next step.
2
INSPECT TNS RELAY
Inspect the TNS relay. (See RELAY INSPECTION.)
Is the TNS relay normal.
Yes
Go to the next step.
No
Replace the TNS relay.
3
INSPECT RELATED WIRING HARNESS FOR SHORT TO GROUND
Measure the resistance between TNS relay terminal C and ground.
Is the resistance more than 10,000 ohms?
Yes
Repair the related wiring harness.
No
Repair the related wiring harness.
4
INSPECT RELATED WIRING HARNESS FOR SHORT TO GROUND
Disconnect the light switch connector.
Measure the resistance between light switch terminal B and ground.
Is the resistance more than 10,000 ohms?
Yes
Go to the next step.
No
Repair the related wiring harness.
5
INSPECT GEM OPERATION
Disconnect all the GEM connectors.
Inspect for the following items:
• Corrosion
• Terminal separation
Connect all the connectors and verify that their positions are correct.
Operate the system and inspect for any malfunction.
Is there any malfunction?
Yes
Replace the GEM.
Clear the DTC.
Perform the DTC inspection for the GEM.
No
The malfunction may result from loose connectors or corrosion.
Clear the DTC.
Perform the DTC inspection.
