DTC 008

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The Remote Control Door Lock Receiver (RCDLR) communicates with the Body Control Module (BCM) through the keyless entry serial data circuit. When any button on the keyless entry transmitter is pressed, the transmitter sends a signal to the RCDLR. The RCDLR sends either a lock or unlock request to the BCM, depending on which button is pressed on the transmitter.

The BCM receives the message and performs the appropriate function.

CONDITIONS FOR SETTING THE DTC
The BCM detects an open, a short to voltage, or a short to ground in the keyless entry serial data circuit.

ACTION TAKEN WHEN THE DTC SETS
^ The BCM sets the Diagnostic Trouble Code (DTC) 8.
^ The keyless entry system remains inoperative. The power sliding door may still be operational because the RCDLR operates the power sliding door directly without using the BCM.

CONDITIONS FOR CLEARING THE MIL/DTC
^ An open, a short to voltage, or a short to ground in the keyless entry serial data circuit is no longer present between the BCM and the RCDLR.
^ After the repairs are completed, refer to Diagnostic Trouble Code (DTC) Clearing in order to clear the DTC.

DIAGNOSTIC AIDS
Refer to Testing for Intermittent and Poor Connections in Diagrams.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
1. Always perform the keyless entry diagnostic system check before attempting to diagnose DTC 8.
2. This step tests for B+ on the keyless entry serial data circuit.
3. This step tests the keyless entry serial data circuit for a short to voltage.
4. This step tests the keyless entry serial data circuit for a high resistance or an open.
5. This step tests the keyless entry serial data circuit for a short to ground.