Pinpoint Test H: The Vehicle Does Not Start

Anti-Theft

Pinpoint Tests

Pinpoint Test H: The Vehicle Does Not Start

Normal Operation

During each vehicle start sequence, when the key is turned to the START or ON position, the Passive Anti-Theft System (PATS) transceiver reads the PATS key identification code and sends the data to the Instrument Panel Cluster (IPC). If the concern is due to a PATS concern, PATS DTCs should be set in the IPC and DTC P1260 in the PCM. If it is due to a starting system, or a driveability concern, there is no PATS DTCs in the IPC or DTC P1260 in the PCM.

This pinpoint test is intended to diagnose the following:

- Starting system concern
- PATS concern



PINPOINT TEST H: THE VEHICLE DOES NOT START

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H1 CHECK FOR COMMUNICATION WITH THE PCM AND THE IPC


- Connect the scan tool.
- Ignition ON.
- Carry out the network test using the scan tool.
- Does the scan tool establish communication with the PCM and the IPC?

Yes
GO to H2.

No
REFER to Information Bus to diagnose the module that is not communicating with the scan tool.

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H2 CHECK FOR IPC DTCs


- Retrieve the IPC continuous and on-demand DTCs.
- Are any IPC DTCs present?

Yes
REFER to DTC Charts. Anti-Theft - Passive Anti-Theft System (PATS)

No
The no-start condition is not PATS-related. REFER to Computers and Control Systems Information to diagnose the cause of the no-start condition.

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