Pinpoint Test I: An Individual Button/Feature Is Inoperative From The Remote Keyless Entry (RKE) Transmitter

Handles, Locks, Latches and Entry Systems

Pinpoint Tests

Pinpoint Test I: An Individual Button/Feature Is Inoperative From The Remote Keyless Entry (RKE) Transmitter

Normal Operation

The Remote Keyless Entry (RKE) feature is controlled by the Tire Pressure Monitor (TPM) module and the Body Control Module (BCM). When a button is pressed on an Integrated Keyhead Transmitter (IKT) the Transmitter Identification Code (TIC) and RKE command is received by the internal TPM antenna. If the TPM module determines that it is a valid and programmed TIC, it sends the RKE command and TIC to the BCM over the Medium Speed Controller Area Network (MS-CAN). When the BCM receives the RKE command, it carries out the command by controlling the door locks or activating the horn and turn signals for the panic alarm.

The BCM will disable the panic feature if the ignition key is in any position other than OFF or LOCK.

This pinpoint test is intended to diagnose the following:

- Door locks
- Factory remote start system (if equipped)
- Horn system
- Turn signal system
- IKT

PINPOINT TEST I: AN INDIVIDUAL BUTTON/FEATURE IS INOPERATIVE FROM THE RKE TRANSMITTER

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I1 VERIFY THE DOOR LOCK OPERATION

- Press the lock and unlock button from the driver door lock control switch while observing the door lock operation.
- Do the door locks operate correctly?

Yes
GO to I2.

No
CHECK the symptom(s) and GO to Symptom Chart - Electrical. Symptom Related Diagnostic Procedures

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I2 VERIFY THE HORN OPERATION

- Enter the following diagnostic mode on the scan tool: BCM DataLogger .
- Select the BCM PID (HORN) and active command the horn on.
- Does the horn sound when commanded on?

Yes
GO to I3.

No
REFER to Horn Testing and Inspection.

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I3 VERIFY THE HAZARD LAMP OPERATION

- Place the hazard switch in the ON position.
- Do the hazard lamps operate correctly?

Yes
For vehicles without remote start, REPLACE the inoperative IKT and PROGRAM the new IKT individually or PROGRAM all the IKTs. REFER to Anti-Theft - Passive Anti-Theft System (PATS) Key Programming for the programming procedures. If all the IKTs are to be programmed, INFORM the customer that any IKTs not present need to be programmed. TEST the system for normal operation.

For vehicles equipped with the factory remote start, GO to I4.

No
REFER to Exterior Lighting Testing and Inspection.

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I4 VERIFY THE REMOTE START BUTTON

- Enter the following diagnostic mode on the scan tool: BCM DataLogger .
- Select the BCM PID (LST_RKE_xMTR) while pressing the remote start button on an IKT.
- Does the PID indicate the remote start button is being pressed?

Yes
REFER to Starting System Testing and Inspection.

No
REPLACE the inoperative IKT and PROGRAM the new IKT individually or PROGRAM all the IKTs. REFER to Anti-Theft - Passive Anti-Theft System (PATS) Key Programming for the programming procedures. If all the IKTs are to be programmed, INFORM the customer that any IKTs not present need to be programmed. TEST the system for normal operation.

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