Circuit Description
The roof door module (RDM) monitors the folding top motor relay control output circuits from RDM at least once every 2 milliseconds. The folding top motor control relays have ignition 0 voltage supplied. As the folding top control switch is applied to either the open or close position, the RDM will apply the appropriate relay output control that will control the folding top pump motor direction for the hydraulic pump to move the roof system to the desired direction.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B3681 Convertible Top/Moveable Roof Pump Motor Clockwise Circuit
Conditions for Running the DTC
| • | The battery voltage is between 9-16 volts. |
| • | Ignition is in the Run or Accessory position or retained accessory power (RAP) is active. |
Conditions for Setting the DTC
| • | If the RDM detects a short to power in the folding top motor relay control circuit when requested. |
| • | If the RDM detects an open or short to ground in the folding top motor relay control circuit when requested. |
| • | If the RDM detects an open in the IGN 0 supply voltage circuit to the folding top motor relay when requested. |
Action Taken When the DTC Sets
| • | Stores a current and history DTC B3681 in the RDM. |
| • | The roof operation is suspended. |
Conditions for Clearing the MIL/DTC
| • | This DTC will clear on the current status after the condition for setting the fault is corrected. |
| • | A history DTC will clear after 50 consecutive ignition cycles without a fault present. |
| • | History and current DTC can be cleared using the scan tool. |
Diagnostic Aids
If the DTC does not reset after the code is cleared, then the switch may be the intermittent fault. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Folding Top Schematics Connector End View Reference: Power and Grounding Connector End Views in Wiring Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Does the pump motor run with each command? | Go to Diagnostic Aids | Go to Step 3 |
3 |
Does the test lamp illuminate? | Go to Step 4 | Go to Step 10 |
4 |
Does the test lamp turn ON and OFF with each command? | Go to Step 8 | Go to Step 5 |
5 | Does the test lamp remain illuminated with each command? | Go to Step 7 | Go to Step 6 |
6 | Test the control circuit of the inoperative folding top motor relay for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 13 | Go to Step 9 |
7 | Test the control circuit of the inoperative folding top motor relay 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 13 | Go to Step 9 |
8 | Inspect for poor connections at the inoperative folding top motor relay. 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 13 | Go to Step 11 |
9 | Inspect for poor connections at the harness connector of the roof door module (RDM). 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 13 | Go to Step 12 |
10 | Repair the ignition 0 voltage circuit of the inoperative folding top motor relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 13 | -- |
11 | Replace the inoperative folding top motor relay. Refer to Relay Replacement in Wiring Systems. Did you complete the replacement? | Go to Step 13 | -- |
12 |
Important: Always perform the reinitialization of the power windows procedure for the RDM.
Did you complete the replacement? | Go to Step 13 | -- |
13 |
Does the DTC reset? | Go to Step 2 | System OK |
