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| • | 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. |
The body control module (BCM) communicates with the remote control door lock receiver through the keyless entry serial data circuits. When any button on the keyless entry transmitter is pressed, the transmitter sends a signal to the remote control door lock receiver. The remote control door lock receiver sends a function request to the BCM, depending on which button is pressed on the transmitter. The BCM receives the message and performs the appropriate function.
The transmitter that is sending a signal to the remote control door lock receiver is different from those transmitters stored in the BCM.
No action is taken.
| • | A current DTC will clear when the fault is no longer present and the ignition switch is cycled. |
| • | A history DTC will clear after 40 consecutive ignition cycles without a fault present. |
Keyless Entry System Description and Operation
Control Module References for scan tool information
If DTC B3106 is set
Replace the K77 remote control door lock receiver.
If DTC B3106 is not set
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for remote control door lock receiver replacement, setup and programming
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