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

9000 - 9999: 9938







9938 - TOP POSITION UNKNOWN (REAR BOW SWITCH LATCHED/TONNEAU COVER TRAVEL SENSOR)





- When Monitored: Continuous with the ignition on.
- Set Condition: When the Power Top Control Module senses the Rear Bow Switch Sense and the Tonneau Cover Travel Sensor inactive.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Diagnostic Test

1. Check for Current DTCs
Turn the ignition on.
With the scan tool, read and record the Power Top Control Module (PTCM) DTCs.

NOTE: If any other Switch/Sensor DTCs have been set, diagnose those DTCs first before continuing.

With the scan tool, erase the Power Top Control Module (PTCM) DTCs.
Press the Power Top Switch to raise and lower the Power Top.
With the scan tool, read the Power Top Control Module (PTCM) DTCs.
Did this DTC set again?

Yes

- Go To 2

No

- Go To 3

2. CHECKING TOP SWITCH AND TRAVEL SENSOR STATUS
With the scan tool, verify all top switch and travel sensor states. Refer to appropriate testing for a chart showing the switch and travel sensor status during normal operation.
Are the travel sensor(s) and switch statuses ok?

Yes

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

No

- Repair or replace the switch or sensor as necessary.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

3. INTERMITTENT WIRING AND CONNECTORS
The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs.

NOTE: Check for any Technical Service Bulletins that may apply.

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.
Were there any problems found?

Yes

- Repair as necessary.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

No

- The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.