PINPOINT TEST DK: Accelerator Pedal Position (APP) Sensor: Introduction

WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After clearing an APP sensor diagnostic trouble code (DTC) to verify a repair or an intermittent concern, apply the accelerator pedal before carrying out the self-test. Take 10 seconds to carry out a full sweep of the accelerator pedal from fully released to fully applied and back to fully released.

This pinpoint test is intended to diagnose the following:

accelerator pedal position (APP) sensor (9F836)
harness circuits: ETCRTN, SIGRTN, ETCREF, APP1, APP2, and APP3
powertrain control module (PCM) (12A650)

Fig 1: Accelerator Pedal Position (APP) Sensor Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Accelerator Pedal Position (APP) Sensor Connector - B

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Fusion, Milan, MKZ	A	4 5 7 6, 9 10, 8	APPS3 APPS2 APPS1 ETCRTN ETCREF
All other vehicles	B	8 5 2 1, 3 6, 7	APPS3 APPS2 APPS1 ETCRTN ETCREF

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to the REFERENCE VALUES article.

Vehicle	Connector	Pin	Circuit
E-Series, F-Super Duty	170 Pin	B18, B6, E59 B16, B4, E66 B35, B36 B28 B17 B5	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
Edge, MKX	190 Pin	B59, B65, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
Expedition, Navigator	140 Pin	B59, B65, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
Explorer, Explorer Sport Trac, Mountaineer	170 Pin	B43, B6, E59 B24, B4, E66 B35, B36 B28 B17 B5	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
F-150, Mark LT	190 Pin	B58, B59, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
Five Hundred, Freestyle, Montego	150 (50-50-50) Pin	B41, B6, E7 B24, B4, E18 B35, B36 B28 B17 B5	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
Fusion, Milan, MKZ	140 Pin	B59, B60, E59 B21, B28, E66 B51, B52 B27 B26 B25	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1
All other vehicles	170 Pin	B41, B6, E59 B24, B4, E66 B35, B36 B28 B17 B5	ETCRTN ETCREF VPWR APPS3 APPS2 APPS1