Pinpoint Test DK: Accelerator Pedal Position (App) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. 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, ETCRTN2, ETCRTN3, ETCREF, ETCREF2, ETCREF3, APP1, APP2, and APP3
- powertrain control module (PCM) (12A650)
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 |