B0527

DTC B0527, B0528, or B0529

Circuit Description

When the body control module (BCM) receives a right turn signal ON command from the turn signal switch, the BCM will apply voltage to the right rear stop/turn lamp supply voltage circuit and right turn signal lamps supply voltage circuit. The turn signal flasher is integrated within the BCM and will flash both circuits simultaneously. The turn signal indicator is also illuminated utilizing the right rear stop/turn lamp supply voltage circuit.

DTC Descriptors

This diagnostic procedure supports the following DTCs:

* DTC B0527 Right Turn Signal Circuit Low
* DTC B0528 Right Turn Signal Circuit High
* DTC B0529 Right Turn Signal Circuit Open

Conditions for Running the DTC

The battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

* When the BCM receives a right turn signal command and the right rear stop/turn lamp supply voltage circuit is open, shorted to ground, or shorted to voltage
* When the BCM receives a right turn signal command and the right turn signal lamps supply voltage circuit is shorted to ground or shorted to voltage

Action Taken When the DTC Sets

The right front and/or right rear turn signals will not operate or will remain always ON.

Conditions for Clearing the MIL/DTC

* This DTC will clear on current status after the condition for setting the fault is corrected.
* A history DTC will clear after 100 consecutive ignition cycles without a fault present.
* History and current DTCs can be cleared using a scan tool.

Test Description

Step 1 - Step 15:

The numbers below refer to the step numbers on the diagnostic table.
3. This step tests for supply voltage and ground at the inoperative bulb socket.
4. This step tests if battery positive voltage is constantly being applied to the supply voltage circuit.
5. This step tests if a condition exists in the supply voltage circuit.
6. This step tests if a condition exists in the ground circuit.
12. After replacement of the instrument panel cluster (IPC), you must calibrate the new cluster for proper operation.
14. After replacement of the BCM, you must calibrate the new module for proper operation.