1994 PCED OBDI-A
SECTION 6A: EEC-IV Pinpoint Test
Procedures
TA: Park/Neutral Position (PNP)/ Clutch Pedal Position (CPP) Switches
Introduction
  TA: Pinpoint Tests  

Note

You should enter this Pinpoint Test only when you have been directed here from Diagnostic Routines, Section 2A.

Remember

This Pinpoint Test is intended to diagnose only the following:

Description

The Neutral Drive Input gives an indication of the transmission load to the Powertrain Control Module (PCM). This information is required for adjusting fuel/air ratio and idle speed. If the Park/Neutral Position (PNP) switch or Clutch Pedal Position (CPP) switch is closed, the circuit from Test Pin 30 will be grounded.

Pinpoint Test Schematics

Aerostar, Explorer, Ranger with Automatic Transmission A4LD




Tempo/Topaz with ATX Transmission




E-Series/F-Series/Bronco with C6 Transmission




Escort/Tracer with Automatic Transmission




3.0L Taurus SHO with Manual Transmission




3.8L SC Thunderbird, 4.0L Ranger/Aerostar/Explorer with Manual Transmission




4.9L E-Series/F-Series/Bronco with Manual Transmission




All Others with Manual Transmissions






Test Pin 30 — PNP/CPP
ApplicationWire Color
Escort/TracerBR/Y
Thunderbird/CougarR/LB
All OthersL/BY



Test Pin 46 — SIG RTN
ApplicationWire Color
Thunderbird/CougarBK/W
All OthersGY/R

 

 

  TA: Pinpoint Tests