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C 1500 1/2 Ton Pickup 2WD V8-305 5.0L VIN H 4-bbl (1982)

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Engine Controls - ECM May Contain Wrong PROM

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Engine Control Module: Technical Service Bulletins
Engine Controls - ECM May Contain Wrong PROM

Number:

88-42

Section:

6E

Date:

Sept., 1987

Subject:

SERVICE REPLACEMENT ELECTRONIC MODULES (ECM) WITH PROM INSTALLED

Model and Year: 1981-88 ALL MODELS
TO:

ALL CHEVROLET DEALERS

It has been brought to our attention that some service replacement electronic control modules (ECM's) have contained a PROM. A PROM should not
have been included in a replacement ECM as it may not be the correct PROM for the vehicle.

When this situation is encountered, the PROM should be removed from the replacement ECM and the PROM from the vehicle should be installed.

Powertrain Management > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > Engine Controls - ECM May Contain Wrong PROM

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