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 B316A 01: All Windows Control Request Circuit short to batteryDTC B316A 02: All Windows Control Request Circuit short to ground
Circuit/System Description
During top operation, the folding top control (FTC) module sends a signal to the window regulators to index the windows open on the retractable hard top request circuits. Upon completion of top operation it sends a signal to close the windows. The FTC monitors the retractable hard top request circuits for proper operation.
Conditions for Running the DTC
The FTC module is active.
Conditions for Setting the DTC
A short to ground or short to voltage is detected on one or both retractable hard top request circuits.
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.
Diagnostic Aids
An open on either retractable hard top request circuit will cause the windows to be inoperative during top operation.
Reference Information
Schematic Reference
Description and Operation
Power Folding Top Description and Operation
Electrical Information Reference
| • | Circuit Testing |
| • | Wiring Repairs |
Scan Tool Reference
Circuit/System Testing
B316A 01
- Disconnect C 1 from the FTC Module.
- Probe C 1 pin 23 with a test lamp connected to ground. The test lamp should not illuminate.
- Probe C 1 pin 11 with a test lamp connected to ground. The test lamp should not illuminate.
- If circuits test OK, replace FTC Module.
| ⇒ | If the test lamp illuminates, repair a short to voltage. |
| ⇒ | If the test lamp illuminates, repair a short to voltage. |
B316A 02
- Disconnect C 1 from the FTC Module.
- Probe C 1 pin 23 with a test lamp connected to B+. The test lamp should not illuminate.
- Probe C 1 pin 11 with a test lamp connected to B+. The test lamp should not illuminate.
- If circuits test OK, replace FTC Module.
| ⇒ | If the test lamp illuminates, repair a short to ground. |
| ⇒ | If the test lamp illuminates, repair a short to ground. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
