B3680
DTC B3680
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC B3680 01
-
Folding Top Pump Motor Circuit Short to Battery
DTC B3680 02
-
Folding Top Pump Motor Circuit Short to Ground
DTC B3680 04
-
Folding Top Pump Motor Circuit Open Circuit
Diagnostic Fault Information
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
* Battery voltage is between 9-16 V.
* Folding top is operated.
Conditions for Setting the DTC
B3680 01
The FTC module detects a short to voltage on the folding top pump motor in either direction.
B3680 02
The FTC module detects a short to ground on the folding top pump motor in either direction.
B3680 04
The FTC module detects an open on the folding top pump motor in either direction.
Action Taken When the DTC Sets
The top is disabled in one or both directions.
Conditions for Clearing the DTC
The fault is no longer present.
Diagnostic Aids
Scan tool must remain connected and turned on to keep K23 folding top module active during diagnostics.
Reference Information
Schematic Reference
Folding Top Schematics [1][2]Convertible Top
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
Description and Operation
Power Folding Top Description and Operation Power Folding Top
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the X404 harness connector at the M23 folding top pump motor.
2. Ignition ON, test for B+ between the control circuit terminal D and ground while holding the folding top switch in the up/close position.
• If less than the specified value, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the K23 folding top control module.
3. Verify that a test lamp does not illuminate between the control circuit terminal D and ground.
• If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the K23 folding top control module.
4. Ignition ON, test for B+ between the control circuit terminal C and ground while holding the folding top switch in the down/open position.
• If less than the specified value, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the K23 folding top control module.
5. Verify that a test lamp does not illuminate between the control circuit terminal C and ground.
• If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the K23 folding top control module.
6. If all circuits test normal, replace the M23 folding top pump motor.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Folding Top Pump with Motor Replacement Service and Repair
* Control Module References Control Module References for FTC module replacement, programming and setup