9000 - 9999: 9918

9918 - TRUNK LATCH UNLOCKED SIGNAL CIRCUIT SHORT TO GROUND





- When Monitored: Continuously, with the ignition on.
- Set Condition: When the Power Top Control Module (PTCM) senses that both Trunk Latch Unlocked signal and Trunk Latch Locked signal circuits are grounded.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Diagnostic Test

1. Trunk Latch Assembly
Turn the ignition off.
Disconnect the Trunk Latch Assembly C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Turn the ignition on.
With the scan tool, select Input/Output Display and monitor the TRUNK LTCH UNLCK SW.
Does the scan tool display TRUNK LTCH UNLCK SW "UNLOCKED"?

Yes

- Replace the Trunk Latch Assembly.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

No

- Go To 2

2. Trunk Latch Unlocked Signal Circuit for Short to Ground




Turn the ignition off.
Disconnect the Power Top Control Module C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance between ground and the Trunk Latch Unlocked Signal Circuit.
Is the resistance below 100 kohms?

Yes

- Repair the Trunk Latch Unlocked signal circuit for a short to ground.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

No

- Replace the Power Top Control Module.Removal.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test