Pinpoint Test BB : The Chime Always Sounds
- BB1 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) FOR MESSAGE CENTER MESSAGES
- Ignition OFF.
- Ignition ON.
- Check the IPC and message center for illuminated warning indicator or message center displays.
Does the IPC have any RTTs illuminated or message center messages displayed?
Yes REPAIR all message center indication concerns first. REFER to Symptom Chart: IPC or Symptom Chart: Information And Message Center . No GO to BB2 - BB2 CHECK THE EXTERIOR LIGHTING OPERATION
- Place the headlamp switch in the OFF position.
- Close all doors.
- Wait one minute.
- Observe the exterior lights.
Are the headlamps and parking lamps off?
Yes GO to BB3 No REFER to: Headlamps . REFER to: Parking, Rear and License Plate Lamps . - BB3 CHECK THE INTERIOR LIGHTING OPERATION
- Open and close the driver door.
- Observe the interior lights.
Do the interior lights operate correctly from the driver door?
Yes If equipped with a manual transmission, GO to BB5 If equipped with an automatic transmission, GO to BB4 No REFER to: Interior Lighting . - BB4 CHECK THE PRNDL OPERATION
- Verify the PRNDL indicates PARK (P) when selector lever is in PARK (P).
Does the PRNDL indicate PARK (P) when the selector lever is in PARK (P)?
Yes GO to BB5 No GO to Pinpoint Test V - BB5 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the BCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Body Control Module (BCM) . No GO to BB6 - BB6 CHECK THE BCM (BODY CONTROL MODULE) INPUT PIDS FROM THE IGNITION SWITCH
- Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs).
- Select and monitor the BCM ignition switch (IGN_SW_ACC), (IGN_SW_RUN) and (IGN_SW_KEY_IN) Parameter Identifications (PIDs) while cycling the ignition switch through the ACC, OFF, and RUN states.
Do the BCM Parameter Identifications (PIDs) match the ignition switch position?
Yes INSTALL a new IPC. REFER to: Instrument Panel Cluster (IPC) . No DIAGNOSE the ignition switch outputs to the BCM. REFER to: Steering Wheel and Column Electrical Components .