Chime Always On

Chime Always On

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 provide an overview of each diagnostic category.

Circuit/System Description

The body control module (BCM) generates the audible warning. The BCM receives audible warning requests via serial data.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the ignition key alarm switch
2. Ignition ON, verify the scan tool Key In Ignition parameter is No.

• If not No, test the key in ignition signal circuit for a short to ground. If the circuit tests normal, replace the BCM.

3. If all circuits test normal, test or replace the ignition switch.

Repair Instructions

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

* Ignition and Start Switch Replacement
* Control Module References for BCM replacement, setup, and programming