B3602

DTC B3602

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptors
DTC B3602 02
- Movable Roof Control Switch short to ground

DTC B3602 5A
- Movable Roof Control Switch plausibility failure

Diagnostic Fault Information





Circuit/System Description

S15 and S16 are part of the Folding Top Open/Close switch. The folding top control (FTC) module uses the Folding Top Open/Close switch to determine the appropriate action of the top. S15 is closed and pulls the signal circuit low when holding the Folding Top Open/Close switch in the open position. S16 is closed and pulls the signal circuit low when holding the Folding Top Open/Close switch in the close position.

Conditions for Running the DTC

The FTC module is operational.

Conditions for Setting the DTC

B3602 02

A short to ground is detected on the signal circuit of S15 or S16.

B3602 5A

A short to ground is detected on the signal circuits of S15 and S16.

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

Folding Top Schematics ([1][2]Convertible Top)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Power Folding Top Description and Operation (Power Folding Top Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the Folding Top Open/Close Switch.
2. Verify the scan tool Top Control Switch parameter is Idle.

• If scan tool parameter is Opening, test the signal circuit terminal C of S15 for a short to ground. If circuit tests normal, replace FTC Module.
• If scan tool parameter is Closing, test the signal circuit terminal A of S16 for a short to ground. If circuit tests normal, replace FTC Module.

3. If all circuits test normal, replace the Folding Top Open/Close Switch.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Folding Top Switch Replacement (Folding Top Switch Replacement)
* Folding Top Control Module Replacement (Service and Repair)