Circuit Description
The roof door module (RDM) checks the folding top outer latch actuator control circuits at least once every 200 milliseconds.
When requested, the RDM will supply 12 volts and ground to opposing sides of the folding top outer latch actuator in order to release or latch the header.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B1306 Convertible Top/Moveable Roof Front Latch Actuator Open Circuit
Conditions for Running the DTC
| • | The battery voltage is between 9-16 volts. |
| • | The ignition is in the Run or Accessory position or retained accessory power (RAP) is active. |
| • | A request for folding top open operation has been received by the RDM, and the RDM attempts to open the folding top. |
Conditions for Setting the DTC
| • | If the folding top outer latch actuator control circuit is shorted to ground and the RDM supplies 12 volts to the folding top outer latch actuator, DTC B1306 will set. |
| • | If the folding top outer latch actuator control circuit is shorted to battery voltage and the RDM supplies ground to the folding top outer latch actuator, DTC B1306 will set. |
| • | If the folding top outer latch actuator control circuit is open and the RDM supplies 12 volts or ground to the folding top outer latch actuator, DTC B1306 will set. |
Action Taken When the DTC Sets
| • | Stores a current DTC B1306 in the RDM. |
| • | Folding top operation is suspended. |
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. |
| • | History and current DTC can be cleared using the scan tool. |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Folding Top Schematics Connector End View Reference: Power Roof Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Does the scan tool display Idle? | Go to Step 3 | Go to Step 4 |
3 |
Does the test lamp illuminate? | Go to Step 5 | Go to Step 4 |
4 |
Does the test lamp illuminate? | Go to Step 8 | Go to Step 6 |
5 | Test the folding top outer latch actuator control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
6 | Test the folding top outer latch actuator control circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 7 |
7 | Inspect for connections on the harness connector at the RDM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 9 |
8 | Inspect for connections on the harness connector at the folding top outer latch actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 11 | Go to Step 10 |
9 |
Important: Always perform the reinitialization of the power windows procedure for the RDM.
Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the folding top outer latch actuator. Refer to Folding Top Latch Replacement - Center . Did you complete the replacement? | Go to Step 11 | -- |
11 |
Does the DTC reset? | Go to Step 2 | System OK |
