Pinout Values and Diagnostic Parameters

TEST READINGS, ELECTRONIC CONTROL MODULE (ECM) CONNECTIONS

Scope
Test readings and instructions for measuring signals and signal levels on the Motronic control module are given in the following charts.

Points to Remember:
- Readings must be taken with a BOB (Break-Out Box) connected between the control module and the control module connector.
- Several voltage levels must be regarded as guiding values. Your common sense should tell you whether a reading is correct or not.
- If any test reading is obviously wrong, use the wiring diagram to trace the leads, connectors or components which you consider ought to be checked more thoroughly.
- All test readings are for an engine at normal operating temperature.
- Unless otherwise specified, the ignition switch should be in the ON position.
- Specified test readings are for a calibrated FLUKE 88/97.

Colors of Leads
BK Black
BN Brown
BU Blue
GN Green
GY Grey
OG Orange
RD Red
VT Violet
WH White
YE Yellow





Connector View





Chart 1 of 5, Pins 1-7





Chart 2 of 5, Pins 8-20





Chart 3 of 5, Pins 21-32





Chart 4 of 5, Pins 33-44





Chart 5 of 5, Pins 45-55