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

Instrumentation, Message Center and Warning Chimes

Pinpoint Test

Pinpoint Test AL: The Chime Sounds When The Driver Door Is Ajar (No Key In Ignition And Headlamps 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 warning switch (part of the ignition switch) closes providing voltage on circuit CDC30 (BU/GY) to the Instrument Cluster (IC). The voltage input signals the IC that the key is inserted. Door ajar status is communicated to the IC from the Smart Junction Box (SJB) through the Controller Area Network (CAN). If the IC detects that the ignition lock cylinder is in the OFF or ACC position, the key is inserted in the ignition lock cylinder, and the SJB communicates to the IC that the driver door is ajar, the key-in-ignition warning chime sounds. The SJB communicates to the IC that the exterior lamps are on and the driver door is opened. The headlamps on warning chime sounds when the driver door is opened with the ignition lock cylinder in the OFF position, the key is not in the ignition lock cylinder, and the multifunction switch is in the PARKING LAMP or HEADLAMP position.

This pinpoint test is intended to diagnose the following:

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



PINPOINT TEST AL: THE CHIME SOUNDS WHEN THE DRIVER DOOR IS AJAR (NO KEY IN IGNITION AND HEADLAMPS 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 EXTERIOR LAMPS


- Verify the exterior lamps operate correctly.
- Do the exterior lamps operate correctly?

Yes
GO to AL2.

No
REFER to Lighting and Horns. Lighting and Horns

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AL2 CHECK THE IGNITION SWITCH


- Ignition OFF.
- Remove the key from the ignition lock cylinder.
- Disconnect: IC C220.
- Measure the voltage between the IC C220-7, circuit CDC30 (BU/GY), harness side and ground.




- Is any voltage present?

Yes
GO to AL3.

No
GO to AL4.

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AL3 CHECK CIRCUIT CDC30 (BU/GY) FOR A SHORT TO VOLTAGE


- Disconnect: Ignition Switch C250.
- Measure the voltage between the IC C220-7, circuit CDC30 (BU/GY), 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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