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 MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TESTS (EXCEPT DIESEL & HYBRID) (HC TO Z)PINPOINT TESTS QE: ELECTRONIC THROTTLE CONTROL (ETC) SYSTEMINTRODUCTION
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Pinpoint Tests QE: Electronic Throttle Control (Etc) System: Introduction
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Introduction
NOTE:
Soldering is the only approved circuit repair method for the electronic throttle body (ETB) circuits, the throttle position (TP) sensor circuits, and the accelerator pedal position (APP) sensor circuits. Refer to the Connector Repair Procedures article the recommended solder splicing procedures.
This pinpoint test is intended to diagnose the informational PCM DTCs.
The informational DTCs are the result of the failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of a PCM, harness or component concern.
Circuit DTCs can be accompanied by the informational DTCs and should be diagnosed first. Informational DTCs without circuit DTCs may or may not indicate the actual concern and should be diagnosed as a symptom.
This pinpoint test is intended to diagnose the informational PCM DTCs.
The informational DTCs are the result of the failure mode effects management (FMEM) operating strategy that maintains limited vehicle function in the event of a PCM, harness or component concern.
Circuit DTCs can be accompanied by the informational DTCs and should be diagnosed first. Informational DTCs without circuit DTCs may or may not indicate the actual concern and should be diagnosed as a symptom.
Powertrain Control Module (PCM) Connector
For PCM connector views or Reference values, Refer to Reference Values.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Bronco Sport, | 198 PIN | B100, B101, B102 | VPWR |
| Corsair 2.0L, | B25 | PCMRC | |
| Corsair 2.3L, | |||
| Edge 2.0L, | |||
| Escape/Kuga 1.5L, | |||
| Escape/Kuga 2.0L, | |||
| Explorer 2.3L, | |||
| Mustang 2.3L, | |||
| Ranger 2.3L, | |||
| Transit Connect 1.0L, | |||
| Transit Connect 2.0L | |||
| Continental, | 198 PIN | B101, B102, B103 | VPWR |
| EcoSport 1.0L, | B58 | PCMRC | |
| EcoSport 2.0L, | |||
| Ford GT | |||
| Corsair 2.5L, | 198 PIN | B97, B99 | VPWR |
| EcoSport 1.5L Automatic Transmission, | B20 | PCMRC | |
| Escape/Kuga 2.5L, | |||
| KA 1.5L Automatic Transmission, | |||
| Transit Connect 2.5L | |||
| EcoSport 1.5L Manual Transmission, | 112 PIN | B55, B56 | VPWR |
| KA 1.2L, | B25 | PCMRC | |
| KA 1.5L Manual Transmission | |||
| Expedition High Output, | 198 PIN | B101, B102, B103 | VPWR |
| Navigator High Output | PCMRC | ||
| B25 | |||
| F-150 | 306 PIN | B16, B17, B2 B74 |
VPWR PCMRC |
| KA 1.0L | 128 PIN | B36, E24 | VPWR |
| B37 | PCMRC | ||
| Mustang 5.2L Supercharged | 306 PIN | B1, B16, B2 | VPWR |
| B20 | PCMRC | ||
| Mustang TiVCT 5.2L | 198 PIN | B1, B16, B2 | VPWR |
| B20 | PCMRC | ||
| Nautilus 2.0L | 198 PIN | B100, B101, B102 | VPWR |
| PCMRC | |||
| B58 | |||
| Ranger 2.5L | 128 PIN | B11, B12 | VPWR |
| B1 | PCMRC | ||
| Transit GTDI 3.5L | 306 PIN | B101, B102, B103 | VPWR |
| B58 | PCMRC | ||
| All other vehicles | 306 PIN | B1, B16, B2 | VPWR |
| B60 | PCMRC |
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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.