Pinpoint Tests AI: The Key-In-Ignition Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Test

Pinpoint Test AI: The Key-In-Ignition Warning Chime Is Inoperative

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 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 cylinder, and the SJB communicates to the IC that the driver door is ajar, the key-in-ignition warning chime sounds.

- DTC B1352 (Ignition Key-In Circuit Failure) - a continuous DTC that sets in the IC if the IC does not sense voltage applied on circuit CDC30 (BU/GY) with voltage applied to circuit CBP23 (BN/YE) or CBP20 (YE/VT).

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 AI: THE KEY-IN-IGNITION WARNING CHIME IS INOPERATIVE

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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AI1 CHECK THE RECORDED IC DTCs FROM THE SELF-TEST


- Check the recorded IC DTCs from the self-test.
- Is DTC B1352 recorded?

Yes
GO to AI4.

No
GO to AI2.

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AI2 CARRY OUT THE IC WARNING LAMPS AND CHIME ACTIVE COMMAND


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC chime (CHIME) active command. Command the chime on.
- Does the chime sound?

Yes
GO to AI3.

No
GO to AI6.

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AI3 CHECK THE DOOR AJAR INDICATOR


- Make sure all the doors are closed.
- While observing the message center (if equipped) or the door ajar warning indicator, open the driver door.
- Is the DRIVER DOOR AJAR message displayed on the message center (if equipped) or the door ajar warning indicator illuminated with the driver door open?

Yes
GO to AI5.

No
If not equipped with a message center, Go To Pinpoint Test O. Pinpoint Test O: The Door Ajar Warning Indicator Is Never/Always On

If equipped with a message center, Go To Pinpoint Test AG. Pinpoint Tests AG: The DRIVER DOOR, PASSENGER DOOR, REAR LEFT DOOR, REAR RIGHT DOOR or TRUNK AJAR Warning Message Is Inoperativ

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AI4 CHECK CIRCUIT CDC30 (BU/GY) FOR VOLTAGE


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




- Is the voltage greater than 10 volts?

Yes
GO to AI6.

No
GO to AI5.

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AI5 CHECK CIRCUIT CDC30 (BU/GY) FOR AN OPEN OR SHORT TO GROUND


- Disconnect: Ignition Switch C250.
- Measure the resistance between the IC C220-7, circuit CDC30 (BU/GY), harness side and the ignition switch C250-5, circuit CDC30 (BU/GY), harness side; and between the IC C220-7, circuit CDC30 (BU/GY), harness side and ground.




- Is the resistance less than 5 ohms between the IC and the ignition switch, and greater than 10,000 ohms between the IC and ground?

Yes
INSTALL a new ignition switch. CLEAR the DTCs. REPEAT the self-test.

No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

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AI6 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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