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 B3675 01: Movable Roof Control Valve 2 Circuit short to batteryDTC B3675 02: Movable Roof Control Valve 2 Circuit short to ground
DTC B3675 04: Movable Roof Control Valve 2 Circuit open circuit
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
The folding top uses electronically controlled valves to control the flow of hydraulic fluid. The folding top control (FTC) module controls Valve 2 (V2) by supplying voltage to the valve. The FTC Module also monitors the control circuit of V2 for proper operation.
Conditions for Running the DTC
The FTC module is active.
Conditions for Setting the DTC
B3675 01
A short to voltage on the control circuit of V2.
B3675 02
A short to ground on the control circuit of V2.
B3675 04
An open on the control circuit or low reference circuit of V2.
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.
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
B3675 01
Test the control circuit of V2 for a short to voltage. If the circuit test is normal, replace the FTC module.
B3675 02
Test the control circuit of V2 for a short to ground. If the circuit test is normal, replace the FTC module.
B3675 04
- Ignition OFF, disconnect the harness connector at V2.
- Test for less than 5.0 ohm between the low reference circuit terminal 2 and ground.
- Connect a test lamp between the control circuit terminal 1 and ground.
- Ignition ON, command V2 on with a scan tool. The test lamp should illuminate.
- If all circuits test normal, replace V2.
| ⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the FTC module. |
| ⇒ | If the test lamp does not illuminate, test the control circuit for an open/high resistance. If the circuit tests normal, replace the FTC module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
