Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2018EXPEDITION LIMITED, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 325 (ENGINE CONTROLS - PINPOINT TEST A: NO START THROUGH PINPOINT TEST DL: CYLINDER HEAD TEMPERATURE (CHT) SENSOR - (EXCEPT DIESEL & HYBRID))PINPOINT TEST DK: ACCELERATOR PEDAL POSITION (APP) SENSORINTRODUCTION
2018 Ford Expedition Limited, RWD
Pinpoint Test DK: Accelerator Pedal Position (App) Sensor: Introduction
2018 Ford Expedition Limited, RWDSECTION Introduction
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2016 Lincoln Navigator, 2016 Lincoln MKZ, 2016 Lincoln MKX, 2016 Lincoln MKT, and 2016 Lincoln MKS. 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:
- APP sensor (9F836)
- harness circuits: APP1, APP2, APPRTN1, APPRTN2, APPVREF1, APPVREF2, VPWR and GND
- PCM (12A650)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| EcoSport, Fiesta |
A | 4 6 2 5 3 1 |
GND VPWR APP2 APP1 APPRTN2 APPVREF2 |
| All other vehicles | B | 5 2 4 6 3 1 |
APP2 APP1 APPRTN2 APPVREF2 APPRTN1 APPVREF1 |
| Pin | Circuit |
|---|---|
| 31 | APPVREF2 (Accelerator Pedal Position Reference Voltage 2) |
| 13 | APPRTN2 (Accelerator Pedal Position Return 2) |
| 14 | APP2 (Accelerator Pedal Position 2) |
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series 5.4L, Escape/Kuga 2.5L, F-Series Super Duty, Fusion 2.5L, MKZ 3.7L |
190-PIN | B29 B28 |
APP2 APP1 |
| E-Series 6.8L, Edge 3.5L, Explorer TiVCT 3.5L, Explorer 3.7L, F-150 TiVCT 3.5L, F-150 5.0L, F-650/F-750, Flex TiVCT 3.5L, MKS 3.7L, MKT 3.7L, MKX 3.7L, Motorhome/Stripped Chassis/Step Van, Mustang 3.7L, Mustang 5.0L, Mustang 5.2L, Taurus TiVCT 3.5L, Taurus 3.7L, Transit 3.7L, Transit Connect 2.5L |
198 PIN | B60 B61 |
APP2 APP1 |
| EcoSport 2.0L Manual Transmission, EcoSport 1.6L |
80 PIN | B11 | APP1 |
| EcoSport 2.0L Automatic Transmission | 128 PIN | E24 | APP1 |
| Fiesta GTDI 1.6L, Fiesta 1.0L |
198 PIN | B45 | APP1 |
| Fiesta TiVCT 1.6L | 128 PIN | B12 | APP1 |
| Focus GDI 2.0L | 154 PIN | B26 B52 |
APP2 APP1 |
| KA | 128 PIN | B8 B21 |
APP2 APP1 |
| All other vehicles | 198 PIN | B54 B55 |
APP2 APP1 |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.