B3106

DTC B3106 RFA Link Parity Error:

DTC B3106 RFA Link Parity Error (Part 1 Of 2):

DTC B3106 RFA Link Parity Error (Part 2 Of 2):

CIRCUIT DESCRIPTION
The keyless entry system allows the driver to do the following functions from outside the vehicle by using a hand held radio transmitter:
^ Unlock the door locks. The courtesy lights activate automatically when using this function. Lock the door locks.
^ Release the rear compartment lid.
^ Remote alarm.

The transmitter operates in the UHF band. The transmitter sends digitally coded signals to the Remote Control Door Lock Receiver (RCDLR) when pressing any of the transmitter buttons.

The RCDLR detects and decodes transmitter signals. For locking, unlocking, and remote alarm commands, the RCDLR sends command messages to the Body Control Module (BCM) to operate the door locks actuators, courtesy lights, and remote alarm.

CONDITIONS FOR SETTING THE DTC
The BCM detects a message with a parity error not recognized from the RCDLR.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B3106 in memory.

CONDITIONS FOR CLEARING THE DTC
^ A current DTC B3106 is cleared automatically at the end of conclusion of the message containing the parity error.
^ A history DTC will clear after 100 consecutive ignition cycles if the condition for the fault is no longer present.
^ Using a scan tool.

DIAGNOSTIC AIDS
^ The following conditions may cause an intermittent malfunction to occur:
^ The RCDLR does not send a correct signal to the BCM.
^ An intermittent open in circuit 377.
^ DTC P1626 will set in the Powertrain Control Module (PCM) when the ignition switch is on with the Body Control Module (BCM) disconnected. When BCM diagnostics and repairs are completed, refer to Computers and Control Systems for additional information on PCM related DTCs. Computers and Control Systems

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
2. This step checks for keyless entry transmitter operation.
3. This step checks if this DTC resets after operating the keyless entry transmitter.
4. This step checks for an open in circuit 377.
5. This step checks for an open in circuit 377.
6. This step checks the ability of the BCM to operate the door locks.
7. If certain BCM current DTCs are present, perform the diagnostic tables for these DTCs first.