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Multiple Junction Connector: All Technical Service Bulletins
Electrical - 32 Way Connector Improperly Marked

GMC NUMBER:

87-T-110

GROUP:

6D - Engine Electrical

DATE:

January, 1988

CORPORATE
NUMBER:

738106

SUBJECT:

IMPROPER ROW IDENTIFICATION ON 32-WAY FEMALE MICROPACK CONNECTOR

MODELS:

ALL 1987 TRUCKS EQUIPPED WITH TBI ENGINES (ENGINE VIN CODES E, R, Z, H, K, N)

FIGURE 1

During April of 1987, approximately 55,000 32-Pin micropack connectors (See Figure No. 1) were produced with the letters "C" and "D" reversed on
the connector face. This connector is located at the ECM connections on trucks equipped with TBI engines. The connector will work properly, however,
it could cause confusion if electrical troubleshooting is necessary. As shown correctly in Figure No. 1, row "D" is on the same side of the connector as
the "PED" logo.

All Other Service Bulletins for Throttle Valve Cable/Linkage: > < Electrical Connector - Terminal Checking Procedure