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 B1300: Convertible Top Header Latched Sensor CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Folding Top Control Module Battery Voltage | 1 | 1 | -- | -- |
Folding Top Control Module Control | B1420 | B1420 | -- | -- |
Folding Top Control Module Ground | -- | 1, 2 | -- | -- |
Folding Top Control Switch Battery Voltage | 2 | 2 | -- | -- |
Folding Top Control Switch Close Signal | 2 | 2 | B3602 | -- |
Folding Top Control Switch Open Signal | 2 | 2 | B3602 | -- |
Front Panel Position Sensor 5-Volt Reference | B3665, B3666, B3971 | B3665 | B3665, B3666, B3670, B3971 | -- |
Front Panel Position Sensor Signal | B3665 | B3665 | B3665 | -- |
Front Panel Position Sensor Low Reference | -- | B3665 | -- | -- |
Folding Top Position Sensor 5-Volt Reference | B3665, B3666, B3971 | B3971 | B3665, B3666, B3670, B3971 | -- |
Folding Top Position Sensor Signal | B3971 | B3971 | B3971 | -- |
Folding Top Position Sensor Low Reference | -- | B3971 | -- | -- |
Rear Panel Position Sensor 5-Volt Reference | B3665, B3666, B3971 | B3666 | B3665, B3666, B3670, B3971 | -- |
Rear Panel Position Sensor Signal | B3666 | B3666 | B3666 | -- |
Rear Panel Position Sensor Low Reference | -- | B3666 | -- | -- |
Folding Top Pump Motor Temperature Sensor 5-Volt Reference | B3665, B3666, B3971 | 2, 7 | B3665, B3666, B3971, B3670 | -- |
Folding Top Pump Motor Temperature Sensor Signal | 2, 7 | 2, 7 | B3670 | -- |
Hard Top Connected Signal | B1420 | 4, 7 | B1310 | -- |
Folding Top Closed Switch Control | B1420 | 4, 7 | -- | -- |
Front Latched Position Switch Signal | B1420, 3, 4, 7 | 3, 4, 7 | B1300 | -- |
Front Latched Position Switch Control | B1420 | 3, 4, 7 | -- | -- |
Front Unlatched Position Switch Signal | B1420, 9 | 9 | B1300 | -- |
Front Unlatched Position Switch Control | B1420 | 9 | -- | -- |
Compartment Partition Position Switch Signal | B1420, 2, 7 | 2, 7 | 8 | -- |
Compartment Partition Position Switch Control | B1420 | 2, 7 | -- | -- |
Pump Direction A Control | B1011 | 2 | -- | -- |
Pump Direction B Control | B1011 | 2 | -- | -- |
Rear Compartment Lid Open Switch Signal | B1420, 3, 4 | 3, 4 | B3669 | -- |
Rear Compartment Lid Open Switch Control | B1420 | 3, 4 | -- | -- |
Folding Top Valve 1 Control | 1 | 3 | -- | -- |
Folding Top Valve 1 - Ground | -- | 3 | -- | -- |
Folding Top Valve 2 Control | 1 | 4 | -- | -- |
Folding Top Valve 2 - Ground | -- | 4 | -- | -- |
Folding Top Valve 3 Control | 1 | 3, 4, 6 | -- | -- |
Folding Top Valve 3 - Ground | -- | 3, 4, 6 | -- | -- |
Folding Top Valve 4 Control | 1 | B1297, 3, 4, 5 | -- | -- |
Folding Top Valve 4 - Ground | -- | B1297, 3, 4, 5 | -- | -- |
Folding Top Valve 5 Control | 1 | 2 | -- | -- |
Folding Top Valve 5 - Ground | -- | 2 | -- | -- |
1. No communication with the FTC module 2. Power folding top is inoperative 3. Power folding top does not open or complete the top opening procedure 4. Power folding top does not close or complete the top closing procedure 5. Rear Compartment lid will not open 6. Rear compartment lid will not close 7. DIC warning message displayed 8. Folding top will operate with the rear compartment partition removed 9. No effect on power folding top operation | ||||
Circuit/System Description
The folding top control (FTC) module checks the circuits listed, at least once every 300 milliseconds:
| • | Latched switch signal of the front latched switch. |
| • | Unlatched switch signal of the front unlatched switch. |
The front latched switch will close to B+, signaling the FTC module when the front latch has latched and secured the folding top when it is in either the closed or stowed position. The front unlatched switch will close to B+, signaling the FTC module when the folding top latch is in the fully unlatched position. This happens when the folding top is between the closed and stowed positions.
Conditions for Running the DTC
The battery voltage is between 9-16 volts.
Conditions for Setting the DTC
The FTC module detects inputs from both the front latched and front unlatched switch signal circuits being active at the same time.
Action Taken When the DTC Sets
| • | The FTC module disables all folding top functions. |
| • | The FTC module sends a class 2 message to the driver information center (DIC), displaying: TOP NOT SECURE. |
Conditions for Clearing the DTC
| • | This DTC will clear on the current status after the condition for setting the fault is corrected. |
| • | A history DTC will clear after 50 consecutive ignition cycles without a fault present. |
Diagnostic Aids
The Rear Compartment Lid is also referenced as the Deck Lid for this vehicle.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Power Folding Top Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for Scan Tool Information
Circuit/System Verification
- When the folding top is in the fully closed or stowed position, the front unlatch switch is open, the front latch switch is closed to B+ and the scan tool Header Latch Limit Switches parameter should be Latched.
- When the folding top is unlatched or in between the closed and stowed positions, the front latch switch is open, the front unlatched switch is closed to B+ and the scan tool Header Latch Limit Switches parameter should be Unlatched.
| ⇒ | If not the specified value, refer to the Unlatched Position Switch Test. |
| ⇒ | If not the specified value, refer to the Latched Position Switch Test. |
Circuit/System Testing
Unlatched Position Switch Test
- Open the hydraulic fluid bypass valve located above the pump motor by turning it counterclockwise.
- Use the FT wrench to manually open the front latch. To access the front latch, refer to Folding Top Manual Operation.
- Ignition OFF, disconnect the harness connector at the folding top front latch position switch-unlatched.
- Ignition ON, verify the scan tool Header Latch Limit Switches parameter is Mid.
- Install a 3A fused jumper wire between the signal circuit terminal A and the control circuit terminal B. Verify the scan tool Header Latch Limit Switches parameter is Unlatched.
- If all circuits test normal, test or replace the folding top front unlatched position switch.
| ⇒ | If not the specified value, test the signal circuit terminal A for a short to voltage. If the circuit tests normal, replace the FTC module. |
| ⇒ | If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the FTC module. |
Latched Position Switch Test
- Open the hydraulic fluid bypass valve located above the pump motor by turning it counterclockwise.
- Use the FT wrench to manually open the front latch. To access the front latch, refer to Folding Top Manual Operation.
- Ignition OFF, disconnect the harness connector at the folding top front latch position switch-latched.
- Ignition ON, verify the scan tool Header Latch Limit Switches parameter is Mid.
- Install a 3A fused jumper wire between the signal circuit terminal A and the control circuit terminal B. Verify the scan tool Header Latch Limit Switches parameter is Latched.
- If all circuits test normal, test or replace the front latch position switch.
| ⇒ | If not the specified value, test the signal circuit terminal A for a short to voltage. If the circuit tests normal, replace the FTC module. |
| ⇒ | If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the FTC module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for FTC module replacement, setup, and programming |
