Pinpoint Tests AH: The Turn Signal Left On Warning Chime Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AH: The Turn Signal Left On Warning Chime Is Inoperative

Normal Operation

The turn signal left on warning chime sounds when the vehicle travels more than 3.2 km (2.0 miles) with the turn signal on. The Smart Junction Box (SJB) communicates the turn signal switch status to the Instrument Cluster (IC) over the Medium Speed Controller Area Network (MS-CAN). The PCM communicates the odometer count data to the IC over the High Speed Controller Area Network (HS-CAN).

This pinpoint test is intended to diagnose the following:

- Odometer operation
- IC


PINPOINT TEST AH: THE TURN SIGNAL LEFT ON WARNING CHIME IS INOPERATIVE

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AH1 CHECK THE KEY-IN-IGNITION WARNING CHIME OPERATION


- Ignition OFF.
- With the ignition switch in the OFF position and the key in the ignition lock cylinder, open the LH front door and observe the key-in-ignition warning chime operation.
- Does the key-in-ignition warning chime operate correctly?

Yes
GO to AH2.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

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AH2 CHECK THE TURN SIGNAL INDICATORS OPERATION


- Ignition ON.
- Verify the turn signal indicators operation.
- Do the turn signal indicators operate correctly?

Yes
GO to AH3.

No
GO to Pinpoint Test Y. Pinpoint Test Y: The LH/RH Turn Or High Beam Indicator Is Never/Always On

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AH3 CHECK THE ODOMETER FOR CORRECT OPERATION


- Observe the odometer for correct operation.
- Does the odometer operate correctly?

Yes
GO to AH4.

No
GO to Pinpoint Test I. Pinpoint Test I: The Odometer Is Inoperative

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AH4 CARRY OUT THE TURN SIGNAL LEFT ON WARNING CHIME ACTIVE COMMAND USING THE SCAN TOOL


- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC turn signal left on warning chime (CHIME_TS_ON) active command. Command the turn signal left on warning chime on.
- Does the turn signal left on warning chime sound?

Yes
The system is operating correctly. INFORM the customer of the conditions required to activate the turn signal left on warning chime.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

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