Pinpoint Test D: A Chime Does Not Operate Correctly-Air Bag Warning Tone
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- D1 CHECK THE AIR BAG WARNING INDICATOR OPERATION
- Key in OFF position.
- Key in ON position.
- Does the air bag warning indicator illuminate?
- Yes : GO to D2.
- No : REFER to INSTRUMENT CLUSTER to continue diagnosis of the air bag warning indicator.
- D2 CHECK THE EXTERNAL CHIME REQUEST PID
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool: Instrument Cluster Chime Request PID.
- Monitor the instrument cluster chime request PID.
- Does the PID indicate ON?
- Yes : GO to D3.
- No : GO to D5.
- D3 CHECK FOR A FAULTY RESTRAINT CONTROL MODULE (RCM)
- Disconnect: RCM C2041.
- Does the PID still read ON?
- Yes : GO to D4.
- No : REFER to SUPPLEMENTAL RESTRAINT SYSTEM to continue diagnosis of the RCM.
- D4 CHECK CIRCUIT 1083 (LB/BK) FOR A SHORT TO GROUND
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between instrument cluster C220a-6, circuit 1083 (LB/BK), harness side and ground.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to D5.
- No : REPAIR the circuit. TEST the system for normal operation.
- D5 VERIFY THE SYMPTOM
- Key in OFF position.
- Connect: Instrument Cluster C220a.
- Connect: RCM C2041.
- Key in ON position.
- Is the symptom still present?
- Yes : GO to D6.
- No : The system is working correctly.
- D6 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
- corrosion
- pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.