B3112

DTC B3109, B3110, B3111, or B3112

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 Descriptors

DTC B3109 00
- Keyless Entry Transmitter 1 Low Battery

DTC B3110 00
- Keyless Entry Transmitter 2 Low Battery

DTC B3111 00
- Keyless Entry Transmitter 3 Low Battery

DTC B3112 00
- Keyless Entry Transmitter 4 Low Battery

Circuit/System Description

Without RPO Y41

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control door lock receiver (RCDLR) along with the commanded keyless entry function.

With RPO Y41

When starting the vehicle, a message containing the current battery state of the transmitter is sent to the remote control door lock receiver (RCDLR).

Conditions for Running the DTC

Without RPO Y41

A keyless transmitter button is pressed.

With RPO Y41

Ignition ON.

Conditions for Setting the DTC

The DTC sets after 3 consecutive low battery signals from the same programmed transmitter.

Action Taken When the DTC Sets

The keyless entry system is inoperative.

Conditions for Clearing the DTC

The DTC is cleared when a normal transmitter voltage signal is received from the programmed transmitter that set the DTC.

Circuit/System Verification

Verify none of the following DTCs are set:

* DTC B3109
* DTC B3110
* DTC B3111
* DTC B3112

If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC resets, replace the keyless entry transmitter.

Repair Instructions

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

Transmitter Programming