B3602

DTC B3602

DIAGNOSTIC INSTRUCTIONS
- Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
- Review Strategy Based Diagnosis for an overview of the diagnostic approach.
- Diagnostic Procedure Instructions 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

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.

CIRCUIT/SYSTEM TESTING
1. Disconnect the Folding Top Open/Close Switch.
2. Use a scan tool to monitor Top Control Switch.
3. The scan tool should indicate Idle.
- If scan tool indicates Opening, test the signal circuit of S15 for a short to ground. If circuit OK, replace FTC Module.
- If scan tool indicates Closing, test the signal circuit of S16 for a short to ground. If circuit OK, replace FTC Module.
4. If circuits test OK, replace the Folding Top Open/Close Switch.

REPAIR INSTRUCTIONS
Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

- Convertible Top Switch Replacement
- Folding Top Control Module Replacement