Chime Malfunction

Chime Malfunction

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 radio generates the audible warning through the left speaker. The radio receives audible warning requests via the serial data circuit from the instrument panel cluster (IPC) or the body control module (BCM).

Circuit/System Testing

Important: Before performing this diagnostics, make sure no indicators are illuminated after the IPC performs a lamp test. If any indicators are illuminated after the bulb test, perform the indicator diagnostics before this diagnostics.

Chime Always On
1. Ignition ON, headlamp switch OFF, verify the scan tool Headlamp Switch parameter is Inactive.

• If not Inactive, refer to Headlamps Malfunction. Headlamps Malfunction

2. Ignition ON, doors closed, verify the scan tool All Door Lock Command is On.

• If not On, refer to Courtesy Lamps Malfunction. Courtesy Lamps Malfunction

3. Ignition OFF, key out of the ignition, verify the scan tool Key In Ignition Status parameter is Inactive.

• If not Inactive, test the key in ignition switch signal circuit for a short to ground. If the circuits tests normal, replace the ignition switch.

Chime Inoperative
1. Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.

• If the speaker does not operate properly, refer to Speaker Malfunction. Speaker Malfunction

2. Ignition ON, verify that the scan tool Key In Ignition Status parameter is Key In.

• If not Key In, test the signal circuit terminal 5 for a short to voltage or an open/high resistance. If all circuits test normal, replace the ignition switch.

Repair Instructions

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

* Ignition and Start Switch Replacement