Circuit Description
The power roof open switch, power roof close switch, cargo area exit switch, endgate window switch up, endgate window switch down, and endgate window switch express down signal circuits provide inputs to the power roof module (PRM) when the appropriate switch is activated. These inputs allow the roof module to detect a switch request. The roof module provides both power and ground for these switches. If the roof module detects a short to ground on any of these circuits, a DTC is set.
DTC Descriptors
This diagnostic procedure supports the following DTCs:
| • | DTC B3611 Moveable Roof Open Switch Circuit |
| • | DTC B3612 Moveable Roof Close Switch Circuit |
| • | DTC B3613 Cargo Area Window Release Switch Circuit |
| • | DTC B3614 Endgate Window Up Switch Circuit |
| • | DTC B3615 Endgate Window Down Switch Circuit |
| • | DTC B3616 Endgate Window Express Up or Down Circuit |
Conditions for Setting the DTC
The PRM detects a short to ground on a switch signal circuit.
Action Taken When the DTC Sets
| • | Stores a current DTC B3611, B3612, B3613, B3614, B3615 or B3616 in roof module memory |
| • | Stores a history DTC B3611, B3612, B3613, B3614, B3615 or B3616 in roof module memory |
Conditions for Clearing the DTC
| • | The PRM no longer detects a current DTC B3611, B3612, B3613, B3614, B3615 or B3616 in roof module memory. |
| • | The DTC is cleared using a scan tool. |
Diagnostic Aids
| • | The following conditions may cause an intermittent malfunction: |
| - | There is an intermittent short to ground in a switch signal circuit. |
| - | A switch is shorted to ground internally. |
| • | If the DTC does not reset after the code is cleared, then the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
This step tests for the normal state of the appropriate switch using a scan tool. The scan tool will display the normal state as Inactive or Idle.
-
This step tests for a shorted switch. If a switch is shorted, the state will change to Inactive or Idle when the switch is disconnected.
-
This step tests for a short to ground in the switch signal circuit.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Sunroof Schematics Connector End View Reference: Power Roof Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
Does the scan tool display Inactive or Idle? | Go to Step 5 | Go to Step 3 | |
Does the scan tool display Inactive or Idle? | Go to Step 6 | Go to Step 4 | |
Test the appropriate switch signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 5 | |
5 | Inspect for poor connections at the harness connector of the power roof module (PRM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 7 |
6 | Inspect for poor connections at the harness connector of the appropriate switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
7 | Replace the PRM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 9 | -- |
8 | Replace the appropriate switch. Refer to Endgate Window, Midgate Window, and Rear Moveable Roof Switch Assembly Replacement - Overhead Console . Did you complete the replacement? | Go to Step 9 | -- |
9 |
Does the DTC reset? | Go to Step 2 | System OK |
