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

9000 - 9999: 9011







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.





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.
Is the voltage above 16.0 volts?

Yes

- Check and repair the Charging System.
- 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