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 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.
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)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Focus | A | 5 2 3, 4 1, 6 |
APP2 APP1 ETCRTN ETCREF |
| Fusion, Milan, MKZ |
B | 4 5 7 6, 9 10, 8 |
APP3 APP2 APP1 ETCRTN ETCREF |
| All other vehicles | C | 8 5 2 1, 3 6, 7 |
APP3 APP2 APP1 ETCRTN ETCREF |
For PCM connector views or reference values, refer to the REFERENCE VALUES article.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, Grand Marquis, Mustang, Town Car |
170 Pin | B41, B6, E59 B24, B4, E66 B35, B36 B28 B17 B5 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| E-Series, F-Super Duty |
170 Pin | B18, B6, E59 B16, B4, E66 B35, B36 B28 B17 B5 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| Expedition, Navigator |
140 Pin | B59, B65, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| Explorer, Explorer Sport Trac, Mountaineer |
170 Pin | B43, B6, E59 B24, B4, E66 B35, B36 B28 B17 B5 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| F-150, Mark LT |
190 Pin | B58, B59, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| Focus | 190 Pin | B44, B60, E60 B45, B61, E59 B67, B68 B29 B28 |
ETCRTN ETCREF VPWR APP2 APP1 |
| Fusion, Milan, MKZ |
140 Pin | B59, B60, E59 B21, B28, E66 B51, B52 B27 B26 B25 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |
| All other vehicles | 190 Pin | B59, B65, E59 B21, B28, E66 B51, B52, B53 B27 B26 B25 |
ETCRTN ETCREF VPWR APP3 APP2 APP1 |