DTC B3108 Transmitter Synchronization Failure

DTC B31 O8 Transmitter Synchronization Failure

Circuit Description

The RFA module runs this test every time the module processes a message from the transmitters.

Conditions for Setting the DTC

The module will set this DTC if it does not receive a transmission from a transmitter.

Action Taken When the DTC Sets

^ Stores a DTC B3108 in the RFA current memory.

^ No driver warning message will be displayed for this DTC.

Conditions for Clearing the MIL/DTC
The RFA module will clear this DTC after a transmission is received from a transmitter.

Diagnostic Aids

This DTC will stay in memory until it receives a transmission from the RFA transmitters. Obtain all transmitters from the customer and synchronize the transmitters.

Test Description
The numbers below refer to steps on the diagnostic table (see Attachment 5):

1. Perform the Remote Keyless Entry Diagnostic System Check before diagnosing DTC 3108.

3. This repair is to check for known good transmitter synchronization.

4. This repair requires the customer's additional transmitters.

5. This step requires battery replacement with battery type 2032.

Transmitter Programming

Important:
The order that the transmitters are programmed is important, the first transmitter programmed will be transmitter # 1, and the second transmitter programmed will be transmitter # 2. You can program up to four transmitters. Additional transmitters are available that do not have a number on them. Any previously programmed transmitters which were not included in the programming will no longer function with this receiver.

1. Connect a scan tool.

2. Request RKE Programming, the door locks should cycle.

3. Press and hold the lock and unlock buttons on the transmitter being programmed, the door locks will cycle. This should take about 15 seconds.

4. Continue on to the next transmitter and repeat until all of the transmitters are complete.

5. Exit the RKE programming and disconnect the scan tool.

6. Cycle the ignition and test the transmitters for proper operation.