Pinpoint Test DK: Accelerator Pedal Position (App) Sensor: Introduction

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, ETCRTN2, ETCRTN3, ETCREF, ETCREF2, ETCREF3, APP1, APP2, and APP3
powertrain control module (PCM) (12A650)

Fig 1: Accelerator Pedal Position (APP) Sensor Connector

Courtesy of FORD MOTOR CO.

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

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR

Vehicle	Connector	Pin	Circuit
E-Series 4.6L, E-Series 5.4L, Escape/Mariner, Expedition, F-150, Focus, Navigator	190-Pin	B29 B28	APP2 APP1
Edge, Flex, MKS, MKX, Sable, Taurus, Taurus X	190-Pin	B27 B26 B25	APP3 APP2 APP1
Fusion, Milan, MKZ	140 Pin	B27 B26 B25	APP3 APP2 APP1
All other vehicles	170 Pin	B28 B17 B5	APP3 APP2 APP1