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 QA: UNABLE TO ACTIVATE SELF-TEST/NETWORK COMMUNICATION ERRORINTRODUCTION
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Pinpoint Tests QA: Unable To Activate Self-Test/Network Communication Error: Introduction
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Introduction
This pinpoint test is intended to diagnose the following:
- unable to communicate with the PCM
- unable to activate the PCM self-test
- incorrect self-test procedure
- harness circuits: ISP-R, PCMRC, PWRGND and VPWR
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Bronco Sport 1.5L, | A | 3 | ETCRTN |
| EcoSport 1.5L, | 1 | ETCREF | |
| EcoSport 1.0L, | |||
| Escape/Kuga 1.5L, | |||
| KA, | |||
| Transit Connect 1.0L | |||
| All other vehicles | B | 4 | ETCRTN |
| 5 | |||
| ETCREF |
Powertrain Control Module (PCM) Connector
For PCM connector views or Reference values, Refer to Reference Values.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Bronco Sport, | 198 PIN | B96, B97, B98, B99 | PWRGND |
| Corsair 2.0L, | B100, B101, B102 | ||
| VPWR | |||
| Corsair 2.3L, | B25 | ||
| PCMRC | |||
| Edge 2.0L, | B64 | ||
| ISP-R | |||
| Escape/Kuga 1.5L, | |||
| Escape/Kuga 2.0L, | |||
| Explorer 2.3L, | |||
| Mustang 2.3L, | |||
| Ranger 2.3L | |||
| Continental, | 198 PIN | B96, B97, B98, B99 | PWRGND |
| EcoSport 1.0L, | B101, B102, B103 | VPWR | |
| EcoSport 2.0L, | B58 | ||
| PCMRC | |||
| Ford GT | B48 | ISP-R | |
| Corsair 2.5L, | 198 PIN | B100, B102, B103, B5 | PWRGND |
| EcoSport 1.5L Automatic Transmission, | B97, B99 | ||
| Escape/Kuga 2.5L, Transit Connect 2.5L | VPWR | ||
| B20 | |||
| PCMRC | |||
| B41 | ISP-R | ||
| EcoSport 1.5L Manual Transmission, | 112 PIN | B49, B50, B51 | PWRGND |
| KA 1.2L, | B55, B56 | VPWR | |
| KA 1.5L Manual Transmission | B25 | ||
| PCMRC | |||
| B43 | |||
| ISP-R | |||
| Edge 2.7L, | 306 PIN | B96, B97, B98, B99 | PWRGND |
| Nautilus 2.7L | B1, B16, B2 | ||
| B60 | VPWR | ||
| PCMRC | |||
| B13 | |||
| ISP-R | |||
| Expedition High Output, | 198 PIN | B96, B97, B98, B99 | PWRGND |
| Navigator High Output | B101, B102, B103 | ||
| B25 | VPWR | ||
| B48 | PCMRC | ||
| ISP-R | |||
| F-150 | 306 PIN | B46, B47, B61, B62, B76, B77 | PWRGND |
| B16, B17, B2 | VPWR | ||
| B74 | PCMRC | ||
| B25 | ISP-R | ||
| KA 1.0L | 128 PIN | B48, E12, T23, T31, T32 | PWRGND |
| B36, E24 | VPWR | ||
| B37 | |||
| PCMRC | |||
| B45 | |||
| ISP-R | |||
| KA 1.5L Automatic Transmission | 198 PIN | B100, B102, B103, B5 | PWRGND |
| B97, B99 | |||
| B20 | VPWR | ||
| B43 | PCMRC | ||
| ISP-R | |||
| Motorhome/Stripped Chassis/Step Van | 306 PIN | B46, B47, B61, B62, B76 | PWRGND |
| B1, B16, B2 | VPWR | ||
| B60 | PCMRC | ||
| B13 | ISP-R | ||
| Mustang 5.2L Supercharged | 306 PIN | B46, B47, B61, B62, B76, B77 | PWRGND |
| B1, B16, B2 | VPWR | ||
| B20 | PCMRC | ||
| B64 | ISP-R | ||
| Mustang TiVCT 5.2L | 198 PIN | B100, B102, B103, B5 | PWRGND |
| B1, B16, B2 | VPWR | ||
| B20 | PCMRC | ||
| B64 | ISP-R | ||
| Nautilus 2.0L | 198 PIN | B96, B97, B98, B99 | PWRGND |
| B100, B101, B102 | |||
| B58 | VPWR | ||
| B64 | PCMRC | ||
| ISP-R | |||
| Ranger 2.5L | 128 PIN | B35, B36, B47, B48 | PWRGND |
| B11, B12 | VPWR | ||
| B1 | PCMRC | ||
| B8 | ISP-R | ||
| Transit GTDI 3.5L | 306 PIN | B46, B47, B61, B62, B76, B77 | PWRGND |
| B101, B102, B103 | VPWR | ||
| B58 | PCMRC | ||
| B13 | ISP-R | ||
| Transit Connect 1.0L, | 198 PIN | B96, B97, B98, B99 | PWRGND |
| Transit Connect 2.0L | B100, B101, B102 | VPWR | |
| B25 | PCMRC | ||
| All other vehicles | 306 PIN | B46, B47, B61, B62, B76, B77 | PWRGND |
| B1, B16, B2 | VPWR | ||
| B60 | PCMRC | ||
| B13 | ISP-R |
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.