Electronic Transmission - Continuous Memory Diagnostic Trouble Codes (DTC)

1994 PCED OBDI-A

SECTION 6A: EEC-IV Pinpoint Test
Procedures

TG: Electronic Transmission - Continuous Memory Diagnostic Trouble Codes (DTC)
Introduction

TG: Pinpoint Tests

Note

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

Remember

To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault:

Other aftermarket modifications
Incorrect transmission fluid level
Transmission operating temperature
Engine operating temperature
Ambient temperature
Faulty connections
Engine Sensors (e.g. TP Sensor)

The transmission solenoids and the MLP sensor are not analyzed in this Pinpoint Test, but are analyzed in the Transmission Group in the Service Manual.

This Pinpoint Test is intended to diagnose only the following:

Harness Circuits: CCS, SS1, SS2, SS3, EPC, TCC, TFT, TR and 3-2/CCS
Powertrain Control Module (PCM) (12A650)

Pinpoint Test Schematics

Probe (CD4E)

Taurus/Sable, Continental AX4S

Test Pin 55—SS3
Application	Wire Color
3.8L Continental	PK/BK
All Others	W/R

Mustang, Thunderbird/Cougar, Crown Victoria/Grand Marquis, Mark VIII, Town Car, E-Series (AODE/4R70W)

Test Pin 53
Application	Wire Color
4.6L Town Car, Thunderbird/Cougar	BR/O
All Others	P/Y

F-Series/E-Series/Bronco (E4OD)

Test Pins 35 & 37/57 — EPCPWR
Application	Wire Color
7.3L Diesel	W/R
4.9L, 5.0L, 5.8L & 7.5L	R

Test Pin 38—EPC
Applications	Wire Color
4.9L E-Series	W
All Others	W/Y

Probe (CD4E)

Taurus/Sable, Continental AX4S

5.0L Mustang, Thunderbird/Cougar, Crown Victoria/Grand Marquis, Town Car, E-Series (AODE/4R70W)

E-Series/F-Series, Bronco (E4OD)

Test Pin 30 — MLP
Application	Wire Color
Probe	R/BK
4.9L F-Series, Bronco	GY/Y
All Others	LB/Y

TG: Pinpoint Tests