B3106

DTC B3106

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B3106
- Keyless Entry Data Link Parity Error

Diagnostic Fault Information






Circuit/System 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 a lock, unlock, or panic alarm request to the BCM, depending on which button is pressed on the transmitter. The BCM receives the message and performs the appropriate function. The BCM also uses the keyless entry serial data circuit in order to communicate with the RCDLR when programming transmitters.

Conditions for Setting the DTC

The BCM detects an invalid message from the RCDLR, a message with a parity error.

Action Taken When the DTC Sets

The BCM stores DTC B3106 in memory.

Conditions for Clearing the DTC

* A current DTC will clear when the fault is no longer present and the ignition switch is cycled.
* The history DTC will clear after 100 consecutive ignition cycles without a fault present.
* A scan tool may be used to clear history and current DTCs.

Circuit/System Testing

1. Ignition ON, verify with a scan tool that codes B1003, B3102, and B3103 are not set.

• If any of the codes are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. Diagnostic Trouble Code Descriptions

2. If all circuits test normal, test or replace the RCDLR.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Programming and Relearning for RCDLR setup, and programming. Programming and Relearning