Pinpoint Tests AL: The Chime Sounds When The Driver Door Is Ajar (No Key In The Ignition And The Headlamps Are Off)

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AL: The Chime Sounds When The Driver Door Is Ajar (No Key In The Ignition And The Headlamps Are Off)

Refer to Wiring Diagram Set 60, Instrument Cluster for schematic and connector information. Diagrams By Number

Normal Operation

When the key is inserted into the ignition lock cylinder, the key-in-ignition switch (part of the ignition switch) closes and routes a voltage signal to the Instrument Cluster (IC) through circuit 1414 (LG/VT). The voltage signal indicates to the IC the key is inserted into the ignition lock cylinder. If the IC detects that the ignition switch is in the OFF or ACC position with the key inserted in the ignition lock cylinder and the driver door is ajar, the key-in-ignition warning chime (located in the IC) sounds.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Key-in-ignition switch (part of the ignition switch)
- IC



PINPOINT TEST AL: THE CHIME SOUNDS WHEN THE DRIVER DOOR IS AJAR (NO KEY IN THE IGNITION AND THE HEADLAMPS ARE OFF)

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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AL1 CHECK THE IC ILLUMINATION


- Check the operation of the IC illumination.
- Does the IC illumination operate correctly?

Yes
GO to AL2.

No
REFER to Instrument Panel, Gauges and Warning Indicators.

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AL2 CHECK THE INPUT TO THE IC


- Ignition OFF.
- Disconnect: IC C220.
- Remove the ignition key from the ignition lock cylinder.
- Measure the voltage between the IC C220-13, circuit 1414 (LG/VT), harness side and ground.




- Is any voltage present?

Yes
GO to AL3.

No
GO to AL4.

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AL3 CHECK CIRCUIT 1414 (LG/VT) FOR A SHORT TO VOLTAGE


- Disconnect: Ignition Switch C250.
- Measure the voltage between the IC C220-13, circuit 1414 (LG/VT), harness side and ground.




- Is any voltage present?

Yes
REPAIR the circuit. TEST the system for normal operation.

No
INSTALL a new ignition switch. TEST the system for normal operation.

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AL4 CHECK FOR CORRECT IC OPERATION


- Disconnect the IC connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the IC connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). 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.

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