FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Convertible Top: 9011

9011 POWER TOP CONTROL MODULE (PTCM) OVER VOLTAGE

9011 Power Top Control Module (PTCM) Over Voltage:




WHEN MONITORED
Ignition on and battery voltage above 16.0 volts.

SET CONDITION
The battery voltage to the PTCM rises above a calibrated value for a calibrated amount of time.

POSSIBLE CAUSES
- Charging system operation
- Power top control module

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

DIAGNOSTIC TEST

1. PTCM




Turn the ignition off.
Disconnect the PTCM C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Start the engine and allow the engine to idle.
Measure the voltage of the Fused B(+) circuit at the PTCM C1 harness connector.

Q: Is the voltage above 16.0 volts?

YES: heck and repair the Charging System. 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