Pinpoint Test E: The Engine Does Not Start

Anti-Theft

Pinpoint Test E: The Engine Does Not Start

Normal Operation

The Passive Anti-Theft System (PATS) disables the engine from starting by disabling the fuel injectors and starter. When the ignition is turned to the RUN or START position, the PATS (Passive Anti-Theft System) reads the PATS (Passive Anti-Theft System) key and checks the PCM ID. If an unprogrammed PATS (Passive Anti-Theft System) key is used or an invalid PCM ID is received, the PATS (Passive Anti-Theft System) disables the engine. If there is a PATS (Passive Anti-Theft System) concern that caused the engine to be disabled, "STARTING SYSTEM FAULT" is displayed in the message center.

This pinpoint test is intended to diagnose the following:

- Driveability concern

- PATS (Passive Anti-Theft System) concern

- Starting system concern

PINPOINT TEST E : THE ENGINE DOES NOT START

E1 CHECK FOR COMMUNICATION WITH THE PCM AND THE BCM (Body Control Module)

- Carry out the network test using the scan tool.

Does the scan tool establish communication with the PCM and the Body Control Module (BCM)?

Yes
GO to E2.

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

E2 CHECK FOR BCM (Body Control Module) DTCs

- Enter the following diagnostic mode on the scan tool: BCM (Body Control Module) Self-Test.

Are any BCM (Body Control Module) DTCs present?

Yes
REFER to the BCM (Body Control Module) DTC Chart. Body Control Module
No
The no-start condition is not caused by PATS (Passive Anti-Theft System). REFER to Computers and Control Systems Information to diagnose the cause of the no-start condition.