Convertible Top: 9919

9919 POWER TOP SWITCH (OPEN) CIRCUIT SHORT TO GROUND

9919 Power Top Switch (Open) 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 (Open) signal for more the 60 seconds.

POSSIBLE CAUSES
- Power top switch 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 OPEN.

Q: Does the DRBIII(R) display POWER TOP SW OPEN "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 (Open) 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 (Open) circuit.

Q: Is the resistance below 100 kohms?

YES: Repair the Power Top Switch (Open) 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