Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptors
DTC B3680 01: Movable Roof Pump Motor Circuit short to batteryDTC B3680 02: Movable Roof Pump Motor Circuit short to ground
DTC B3680 04: Movable Roof Pump Motor Circuit open circuit
DTC B3680 0B: Movable Roof Pump Motor Circuit pump motor current above 35A
DTC B3680 0C: Movable Roof Pump Motor Circuit pump motor current below 3A
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
B+, FTC Module X1 Terminal 24 | 1 | 1 | -- | -- |
B+, FTC Module X1 Terminal 26 | B1335 03, B3860 02 | B1335 03 | -- | -- |
12-Volt Reference | B1395 02 | B1296 06, B3669 06 | -- | -- |
Serial Data, FTC Module X1 Terminal 1 | 1 | -- | 1 | -- |
Serial Data, FTC Module X1 Terminal 2 | 1 | -- | 1 | -- |
Serial Data, FTC Module X1 Terminal 11 | B316A 02 | 2 | B316A 01 | -- |
Serial Data, FTC Module X1 Terminal 23 | B316A 02 | 3 | B316A 01 | -- |
Signal, FTC Module X1 Terminal 4 | B3685 59, B1010 08 | B3685 59 | -- | -- |
Signal, FTC Module X1 Terminal 5 | 4 | 4 | -- | -- |
Signal, FTC Module X1 Terminal 10 | B3602 02 | 4 | -- | -- |
Signal, FTC Module X1 Terminal 16 | B3683 59, B1010 08 | B3683 59, B1010 08 | -- | -- |
Signal, FTC Module X1 Terminal 17 | B366C 59 | B1010 08 | -- | -- |
Signal, FTC Module X1 Terminal 22 | B3602 02 | 4 | -- | -- |
Signal, FTC Module X2 Terminal 7 | B366D 59 | B366D 59 | -- | -- |
Signal, FTC Module X2 Terminal 8 | B366A 59 | B366A 59 | -- | -- |
Signal, FTC Module X2 Terminal 11 | B3669 06 | B3669 06 | B3669 01 | -- |
Signal, FTC Module X2 Terminal 12 | B1395 02 | B367B 59 | -- | -- |
Signal, FTC Module X2 Terminal 17 | B367F 59, B1010 08 | B367F 59, B1010 08 | -- | -- |
Signal, FTC Module X2 Terminal 18 | B1307 59 | B1307 59 | -- | -- |
Signal, FTC Module X2 Terminal 19 | B366E 59 | B366E 59 | -- | -- |
Signal, FTC Module X2 Terminal 20 | B366B 59 | B366B 59 | -- | -- |
Signal, FTC Module X2 Terminal 23 | B1296 06 | B1296 06 | B1296 01 | -- |
Signal, FTC Module X2 Terminal 24 | B367A 59 | B1395 02 | -- | -- |
Valve 1 Control | B3674 02 | B3674 04 | B3674 01 | -- |
Valve 2 Control | B3674 02 | B3674 04 | B3674 01 | -- |
Folding Top Pump Motor Direction A Voltage Control | B3680 02 | B3680 04 | B3680 01 | -- |
Folding Top Pump Motor Direction B Voltage Control | B3680 02 | B3680 04 | B3680 01 | -- |
Low Reference Circuit | -- | B3674 01, B3675 01, B1010 08 | 4 | -- |
Ground, FTC Module X1 Terminal 25 | -- | B1345 04 | -- | -- |
Ground, FTC Module X1 Terminal 27 | -- | 1 | -- | -- |
1. No Communication With FTC Module 2. Passenger Side Windows Inoperative During Top Operation 3. Driver Side Windows Inoperative During Top Operation 4. Folding Top Malfunction | ||||
Circuit/System Description
Hydraulic pressure for the folding top system is generated by the Folding Top Pump Motor. The folding top control (FTC) module controls both voltage and ground for the Folding Top Pump Motor. The FTC Module also monitors the circuits for proper operation.
Conditions for Running the DTC
The FTC module is enabled.
Conditions for Setting the DTC
B3680 01
A short to voltage on the folding top pump motor direction A voltage circuit or the folding top pump motor direction B voltage circuit.
B3680 02
A short to ground on the folding top pump motor direction A voltage circuit or the folding top pump motor direction B voltage circuit.
B3680 04
An open on the folding top pump motor direction A voltage circuit or the folding top pump motor direction B voltage circuit.
B3680 0B
Pump motor current is above 35 amps.
B3680 0C
Pump motor current is below 3 amps.
Action Taken When the DTC Sets
The top is disabled.
Conditions for Clearing the DTC
The fault is no longer present and the top completes one cycle.
Diagnostic Aids
| • | DTC B1335 03 will set in conjunction with DTC B3680 if there is a short to ground on the B+ circuit FTC module X1, terminal 26. |
| • | DTC B3680 04 sets when using special function |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Power Folding Top Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing
B3680 01
- Ignition OFF, disconnect the harness connector at the folding top pump motor.
- Ignition ON, connect a test lamp between control circuit terminal 1 and ground. The test lamp should not illuminate.
- If all circuits test normal, repair a short to voltage on the control circuit terminal 2.
| ⇒ | If the test lamp illuminates, test the control circuit for a short to voltage. |
B3680 02
- Ignition OFF, disconnect the harness connector at the folding top pump motor.
- Connect a test lamp between control circuit terminal 1 and ground.
- Ignition ON, use a scan tool to command the pump motor direction A ON. The test lamp should illuminate.
- If all circuits test normal, repair a short to ground on the control circuit terminal 2.
| ⇒ | If the test lamp does not illuminate, test the control circuit for a short to ground. |
B3680 04
- Ignition OFF, disconnect the harness connector at the folding top pump motor.
- Connect a test lamp between control circuit terminal 1 and ground.
- Ignition ON, use a scan tool to command the pump motor direction A ON. The test lamp should illuminate.
- If all circuits test normal, repair an open/high resistance on the control circuit terminal 2.
| ⇒ | If the test lamp does not illuminate, test the control circuit for an open/high resistance. |
B3680 0B
Replace the folding top pump motor.
B3680 0C
Replace the folding top pump motor.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
