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
Fig 1: Electronic Throttle Body Throttle Position Sensor (ETBTPS) Connector
G13711414Courtesy of FORD MOTOR CO.
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

NO RELATED

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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.