Pinpoint Tests AG: Accelerator Pedal Position (APP) Sensor: Introduction

NOTE: After clearing an APP sensor 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

NOTE: Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.

This pinpoint test is intended to diagnose the following:

APP sensor (9F836)
harness circuits: APP1, APP2, APPRTN1, APPRTN2, APPVREF1, and APPVREF2
PCM (12A650)

Fig 1: Accelerator Pedal Position (APP) Sensor Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
APPVREF1 (Accelerator Pedal Position Reference Voltage 1)	1
APPVREF2 (Accelerator Pedal Position Reference Voltage 2)	6
APP1 (Accelerator Pedal Position 1)	2
APP2 (Accelerator Pedal Position 2)	5
APPRTN1 (Accelerator Pedal Position Return 1)	3
APPRTN2 (Accelerator Pedal Position Return 2)	4

Fig 2: Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
APP1 (Accelerator Pedal Position 1)	28
APP2 (Accelerator Pedal Position 2)	29