PINPOINT TEST QA: Unable to Activate Self-Test/Network Communication Error: Introduction
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- unable to communicate with powertrain control module (PCM)
- unable to activate the PCM self-test
- incorrect self-test procedure
- harness circuits: ISP-R, PCMRC, PWRGND and VPWR
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Crown Victoria, Grand Marquis, Ranger, Town Car |
170 PIN | B47, B48, B49, B50 B35, B36 |
PWRGND VPWR |
| E-Series 4.6L, E-Series 5.4L |
190-PIN | B22, B69, B70 B67, B68 B38 B42 |
PWRGND VPWR PCMRC ISP-R |
| E-Series 6.8L | 170 PIN | B47, B48, B49, B50 B35, B36 B37 B31 |
PWRGND VPWR PCMRC ISP-R |
| Explorer | 190-PIN | B50, B69, B70 B67, B68 B38 B48 |
PWRGND VPWR PCMRC ISP-R |
| F-150 6.2L, F-150 5.0L, F-150 3.7L |
190-PIN | B50, B69, B70 B67, B68 B38 B42 |
PWRGND VPWR PCMRC ISP-R |
| F-150 3.5L | 198 PIN | B96, B97, B98, B99 B101, B102, B103 B58 B48 |
PWRGND VPWR PCMRC ISP-R |
| Fiesta | 128 PIN | B35, B36, B47, B48 B11, B12, B8 B1 B9 |
PWRGND VPWR PCMRC ISP-R |
| Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, Taurus 4V 3.5L |
190-PIN | B67, B68, B69, B70 B51, B52, B53 B8 B7 |
PWRGND VPWR PCMRC ISP-R |
| Flex GTDI 3.5L, MKS 3.5L, MKT 3.5L, Taurus GTDI 3.5L |
190-PIN | B67, B68, B69, B70 B35, B36, B51 B38 B42 |
PWRGND VPWR PCMRC ISP-R |
| Fusion 3.5L, MKZ |
140 PIN | B67, B68, B69 B51, B52 B35 B37 |
PWRGND VPWR PCMRC ISP-R |
| All other vehicles | 190-PIN | B69, B70 B67, B68 B38 B42 |
PWRGND VPWR PCMRC ISP-R |