PINPOINT TEST A: No Start: Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Stop this test at the first sign of a fuel leak and repair as required.

No open flame. No smoking during fuel delivery checks.

Failure to follow these instructions may result in personal injury.

This pinpoint test is intended to diagnose the following:

spark (as related to electronic engine control)
powertrain control module (PCM) (12A650)

Fig 1: Throttle Position (TP) Sensor Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Throttle Position (TP) Sensor Connector - B

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Escape/Mariner 2.3L, Ranger 2.3L	A	1 3	SIGRTN VREF
All other vehicles	B	3 1	SIGRTN VREF

Fig 3: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - A

Courtesy of FORD MOTOR CO.

Fig 4: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - B

Courtesy of FORD MOTOR CO.

Fig 5: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector - C

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
E-Series 4.6L, Edge, F-150 4.2L, F-150 4.6L, Focus, MKX, MKZ, Sable, Taurus, Taurus X	A	2 3	ETCRTN ETCREF
Fusion 2.3L, Milan 2.3L	B	3 5	ETCRTN ETCREF
Fusion 3.0L, Milan 3.0L	B	4 5	ETCRTN ETCREF
All other vehicles	C	3 2	ETCRTN ETCREF

Fig 6: Data Link Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
13	FEPS (Flash EEPROM Programming Signal)