Pinpoint Test H: The Vehicle Does Not Start
Anti-Theft
Pinpoint Tests
Pinpoint Test H: The Vehicle Does Not Start
Normal Operation
The Passive Anti-Theft System (PATS) uses a visual anti-theft indicator located in the Instrument Cluster (IC). This indicator proves out for 3 seconds when the key is turned to the ON or START position. If there is a PATS concern, this indicator either flashes rapidly or glows steadily (for more than 3 seconds) when the key is turned to the ON or START position. PATS also flashes the anti-theft indicator every 2 seconds at key off to act as a visual theft deterrent. The anti-theft indicator operation is controlled by the IC. If there is not a PATS concern, the anti-theft indicator proves-out and there will be no PATS DTCs present in the IC. If the anti-theft indicator is off and the vehicle starter does not engage, or clicks, or engages slowly, or it engages and the engine cranks over, but does not start, it is not a PATS issue. The starting concern may be due to either a starter concern, battery/cable concern or a driveability concern.
This pinpoint test is intended to diagnose the following:
- Starting system concern
- PATS concern
- Driveability concern
PINPOINT TEST H: THE VEHICLE DOES NOT START
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H1 CHECK FOR COMMUNICATION WITH THE PCM AND THE IC
- 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 IC?
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 IC DTCs
- Retrieve the IC continuous and on-demand DTCs.
- Are any IC 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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