Pinpoint Test AV: The Key-In-Ignition Chime Is Inoperative

WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

AV1 CHECK INTERIOR LAMPS
- Open the driver door.
- Does the interior dome lamp illuminate when the driver door is open?
Yes

GO to AV2.

No

REPAIR the interior dome lamps. Refer to INTERIOR LIGHTING .
AV2 CHECK KEY-IN-IGNITION CHIME OPERATION
- Insert the ignition key into the ignition switch in the OFF position with the driver door open.
- Does the chime sound?
Yes

The system is operating correctly at this time.

No

GO to AV3.
AV3 CHECK CIRCUIT 1414 (LG/VT) FOR POWER
- Remove the ignition key from the ignition switch.
- Disconnect: Instrument Cluster C220b.
- Insert the ignition key into the ignition switch.
- Measure the voltage between the instrument cluster C220b-15, circuit 1414 (LG/VT), harness side and ground.
  
  Fig 1: Measuring Voltage Between Instrument Cluster C220b-15, Circuit 1414 (LG/VT), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes

GO AV6.

No

GO to AV4.
AV4 CHECK CIRCUIT 1414 (LG/VT) FOR OPEN AND SHORT TO GROUND
- Remove the ignition key from the ignition switch.
- Disconnect: Ignition Switch C250.
- Measure the resistance between the instrument cluster C220b-15, circuit 1414 (LG/VT), harness side and the ignition switch C250-5, circuit 1414 (LG/VT), harness side; and measure the resistance between the instrument cluster C220b-15, circuit 1414 (LG/VT), harness side and chassis ground.
  
  Fig 2: Checking Circuit 1414 (LG/VT) For Open And Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the instrument cluster and the ignition switch, and is the resistance greater than 10,000 ohms between the instrument cluster and chassis ground?
Yes

GO to AV5.

No

REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
AV5 CHECK IGNITION SWITCH
- Insert the ignition key into the ignition switch.
- Measure the resistance between the ignition switch C250-5, component side and C250-4, component side; and measure the resistance between the ignition switch C250-5, component side and chassis ground.
  
  Fig 3: Measuring Resistance Between Ignition Switch C250-5, Component Side And Chassis Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the ignition switch pins, and is the resistance greater than 10,000 ohms between the ignition switch and chassis ground?
Yes

GO to AV6.

No

INSTALL a new ignition switch. Refer to STEERING SYSTEM . CLEAR the DTCs. TEST the system for normal operation
AV6 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all instrument cluster connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all 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. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.