Diagnostic Test

1) Read DTCs
Turn the ignition on.

With the scan tool, read Current DTCs.

Are the Rear Bow Switch and the Tonneau Cover Switch Open DTCs set?

Yes
1. Check and repair the Switches common ground circuit for a loose, damaged or corroded ground circuit.
2. Perform POWER TOP VERIFICATION TEST .
No
1. Go to 2).
2) Tonneau Cover Switch
Turn the ignition off.

Disconnect the Tonneau Cover Switch harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Connect a fused jumper wire between the Tonneau Cover Switch sense circuit and the Tonneau Cover Switch Ground circuit of the Tonneau Cover Switch harness connector.

Turn the ignition on.

With scan tool, select Input/Output Display and monitor the TON COVER SW SENSE.

Does the TON COVER SW SENSE read "LOCKED"?

Yes
1. Replace the Tonneau Cover Switch.
2. Perform POWER TOP VERIFICATION TEST .
No
1. Go to 3).
3) Open Tonneau Cover Switch Sense circuit

Fig 1: Measuring Resistance Of Tonneau Cover Switch Sense Circuit
Courtesy of CHRYSLER LLC

Turn the ignition off.

Remove fused jumper wire.

Disconnect the Power Top Control Module C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Tonneau Cover Switch Sense circuit from the Tonneau Cover Switch harness connector to the Power Top Control Module C1 harness connector.

Is the resistance below 5.0 ohms?

Yes
1. Go to 4).
No
1. Repair the Tonneau Cover Switch Sense circuit for an open.
2. Perform POWER TOP VERIFICATION TEST .
4) Open Tonneau Cover Switch Ground circuit

Fig 2: Measuring Resistance Between Ground And Tonneau Cover Switch Ground Circuit
Courtesy of CHRYSLER LLC

With the ignition off.

Measure the resistance between ground and the Tonneau Cover Switch ground circuit.

Is the resistance below 5.0 ohms?

Yes
1. Replace the Power Top Control Module. Refer to REMOVAL .
2. Perform POWER TOP VERIFICATION TEST .
No
1. Repair the Tonneau Cover Switch Ground circuit for an open.
2. Perform POWER TOP VERIFICATION TEST .