LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (Anti-Theft System - Passive Anti-Theft System (Pats) - (Hybrid)) >> Diagnosis And Testing >> Anti-Theft >> Pinpoint Tests >> Pinpoint Test J: The Vehicle Does Not Start >> Normal Operation

Normal Operation

WARNING: This page is about a different variant/trim than selected.

The Passive Anti-Theft System (PATS) uses a visual anti-theft indicator located in the Instrument Cluster (IC). This anti-theft indicator proves out for 3 seconds when the key is turned to the ON or START position under normal operation. If there is a PATS concern, this anti-theft indicator either flashes rapidly or glows steadily (for more than 3 seconds) when the key is turned to the ON or START position. Retrieve DTCs from the IC and the TCM to determine if there are any PATS-related DTCs that can indicate the cause of the no-start.

A PATS no-start can involve a vehicle no-start due to either the fuel injectors not operating or the Electronically Controlled Continuously Variable Transmission (eCVT) not cranking the engine (or both). A low battery voltage can cause the PATS to allow the eCVT to crank the engine, but can keep the fuel injectors from operating. Also, a key read concern can keep the fuel injectors from operating, while a TCM-PCM ID concern can be at fault if there is no starter operation, although a key read concern can also be the cause of an inoperative eCVT (starter). 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.

This pinpoint test is intended to diagnose the following: 

scientia non olet · About LEMON Manuals