B3602
DTC B3602
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 Descriptor
DTC B3602 5A
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Folding Top Control Switch Not Plausible
Diagnostic Fault Information
Circuit/System Description
The folding top control (FTC) module checks the integrity of the signal circuits from the folding top control switch at least once every 125 milliseconds. The folding top control switch is supplied with B+ from the FTC module via the folding top control switch open and close signal circuits. Activating the folding top control switch to the open or close position will pull the positive voltage to low. The FTC module monitors these signal circuits to control the direction of the folding top.
Conditions for Running the DTC
* Battery voltage is between 9-16 V.
* Folding top is operated.
Conditions for Setting the DTC
* The FTC module detects a short to ground on the folding top control switch open signal circuit.
* The FTC module detects a short to ground on the folding top control switch close signal circuit.
Action Taken When the DTC Sets
Motor continues to run after top opens or closes for about 30 seconds.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear after 50 consecutive ignition cycles without a fault present.
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 harness connector at the S22B folding top control switch.
2. Ignition OFF, test for less than 10 ohms between the low reference circuit terminal 3 and ground.
• If greater than the specified range, test the low reference circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K23 folding top control module.
3. Ignition ON, test for B+ between the signal circuit terminal 1 and ground.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K23 folding top control module.
4. Test for B+ between the signal circuit terminal 4 and ground.
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K23 folding top control module.
5. Ignition ON, verify that a test lamp does not illuminate between the signal circuit terminal 1 and ground.
• If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K23 folding top control module.
6. Verify that a test lamp does not illuminate between the signal circuit terminal 4 and ground.
• If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K23 folding top control module.
7. If all circuits test normal, replace the S22B folding top control switch.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Roof Retractable Opening Position Switch Replacement Roof Retractable Opening Position Switch Replacement
* Control Module References Control Module References for FTC module replacement, programming and setup