B3105

DTC B3105

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 B3105
- Keyless Entry System Key Fobs Not Programmed

Circuit/System Description

The remote control door lock receiver (RCDLR) monitors the number of keyless entry transmitters programmed. Until at least one transmitter is programmed, the RCDLR determines a malfunction condition exists.

Conditions for Running the DTC

The keyless entry system must be enabled and a test is ran every time the key is cycled.

Conditions for Setting the DTC

The DTC is set if there are no keyless entry transmitter programmed to the RCDLR.

Action Taken When the DTC Sets

The keyless entry system is inoperative.

Conditions for Clearing the DTC

The code is cleared as current when at least one fob is programmed to the RCDLR.

Circuit/System Verification

Attempt to program the keyless entry transmitter, Refer to Transmitter Programming. The transmitter should program. Programming and Relearning

Circuit/System Testing

1. Verify that the transmitter is the correct transmitter for the vehicle.

• If not correct, replace the transmitter.

2. Place the transmitter on the test pad of the J 43241 and press each button of the transmitter one at a time. The tester should sound a tone and illuminate a green light when each button is pressed.

• If one or more buttons does not sound the tone and illuminate the green light, replace the transmitter battery and retest with the J 43241. If the condition continues after battery replacement, replace the transmitter.

3. Attempt to program the transmitter, Refer to Transmitter Programming. The transmitter should program. Programming and Relearning

• If the transmitter does not program, test the keyless entry antenna for an open/high resistance. If the circuit tests normal, replace the RCDLR.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Programming and Relearning Programming and Relearning.