Pinpoint Test AP: The Memory Feedback Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AP: The Memory Feedback Warning Chime Is Inoperative

Normal Operation

The Instrument Panel Cluster (IPC) receives the memory feedback chime request from the Body Control Module (BCM) over the High Speed Controller Area Network (HS-CAN). When a successful memory set procedure is carried out, the Driver Seat Module (DSM) sends a chime request over the Medium Speed Controller Area Network (MS-CAN) to the BCM (Body Control Module), which gateways the chime request to the IPC (Instrument Panel Cluster) to sound the memory feedback chime.

This pinpoint test is intended to diagnose the following:

- DSM (Driver Seat Module)

- IPC (Instrument Panel Cluster)

PINPOINT TEST AP : THE MEMORY FEEDBACK WARNING CHIME IS INOPERATIVE

AP1 CHECK THE KEY-IN-IGNITION WARNING CHIME OPERATION

- Ignition OFF.

- Insert the key into the ignition lock cylinder.

- Open the LH front door and observe the key-in-ignition warning chime operation.

Does the key-in-ignition warning chime operate correctly?

Yes
GO to AP2.
No
INSTALL a new IPC (Instrument Panel Cluster). REFER to Instrument Panel Cluster (IPC) . TEST the system for normal operation.

AP2 CHECK THE MEMORY SET FEATURE

- Verify the memory set procedure can successfully change the memory preferences.

Does the memory set procedure successfully change the memory preferences?

Yes
GO to AP3.
No
REFER to Seats.

AP3 RETRIEVE THE RECORDED DTCs FROM THE DSM (Driver Seat Module) SELF-TEST

- Check for recorded DTCs from the DSM (Driver Seat Module) self-test.

Is DTC U0140:00 recorded?

Yes
REFER to Seats.
No
INSTALL a new DSM (Driver Seat Module). TEST the system for normal operation.