Pinpoint Test Bf: The Chime Always Sounds
- BF1 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 RTT or warning indicators 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, in Symptom Chart(s) . No GO to BF2 - BF2 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 BF3 No Refer to: Headlamps . or Refer to: Parking, Rear and License Plate Lamps . - BF3 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 GO to BF4 No Refer to: Interior Lighting . - BF4 CHECK THE PRNDL OPERATION
- Apply the parking brake.
- Move the selector lever through all the ranges while observing the PRNDL.
Does the PRNDL operate correctly and display the correct position matching the selector lever position?
Yes GO to BF5 No GO to Pinpoint Test AH - BF5 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 BF6 - BF6 CHECK THE BCM (BODY CONTROL MODULE) INPUT PIDS FROM THE IGNITION SWITCH
- Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs).
- Access the BCM and monitor the IGN_SW_STATEPID
- Monitor the BCM ignition switch PID while cycling the ignition switch through the ACC, OFF, and RUN states.
Do the BCM Parameter Identifications (PIDs) match the ignition switch position?
Yes A guided routine is not applicable for this vehicle and market. Replace the component that was faulted through diagnosis. No For ignition RUN or ACC concerns, DIAGNOSE the ignition switch outputs to the BCM. Refer to: Steering Wheel and Column Electrical Components . For key-in-ignition concern, GO to BF7 - BF7 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR VOLTAGE AT THE BCM (BODY CONTROL MODULE)
- Ignition OFF.
- Disconnect BCM C2280B.
- Remove the key from the ignition cylinder.
- Measure:
Positive Lead Measurement / Action Negative Lead C2280B-38 Ground
Is any voltage present?
Yes GO to BF8 No GO to BF10 - BF8 CHECK THE KEY-IN-IGNITION INPUT WITH THE IGNITION SWITCH DISCONNECTED
- Disconnect Ignition Switch C250.
- Measure:
Positive Lead Measurement / Action Negative Lead C2280B-38 Ground
Is any voltage present?
Yes REPAIR the circuit. No GO to BF9 - BF9 CHECK THE IGNITION SWITCH OPERATION
- Perform the ignition switch component test. Refer to Component Testing for schematic and connector information.
Does the ignition switch pass the component test?
Yes INSTALL a new ignition lock cylinder housing. No INSTALL a new ignition switch. Refer to: Ignition Switch . - BF10 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the BCM connectors. Make sure they seat and latch correctly.
- Operate the system and verify the concern is still present
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. Refer to: Body Control Module (BCM) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.