Convertible Top: 9920

9920 POWER TOP SWITCH (CLOSE) CIRCUIT SHORT TO GROUND

9920 Power Top Switch (Close) Circuit Short To Ground:

WHEN MONITORED
Continuously, with the ignition on.

SET CONDITION
When the Power Top Control Module (PTCM) senses the Power Top Switch (Roof Close) signal for more the 60 seconds.

POSSIBLE CAUSES
- Power top switch (close)circuit shorted to ground
- Power top switch
- Power top control module

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

DIAGNOSTIC TEST

1. Power Top Switch




Turn the ignition off.
Disconnect the Power Top Switch harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Turn the ignition on.
With DRBIII(R), select Input/Output Display and monitor the POWER TOP SW CLOSE.

Q: Does the DRBIII(R) display POWER TOP SW CLOSE "NOT ACTIVE"?

YES: Replace the Power Top Switch. Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test
NO: Go To 2

2. Power Top Switch (Close) 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 Power Top Switch (Close) circuit.

Q: Is the resistance below 100 kohms?

YES: Repair the Power Top Switch (Close) circuit for a short to ground. Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test
NO: Replace the Power Top Control Module. Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test