Check Engine Lamp Driver Module

Restores Proper Warning Lamp Operation For Accurate Diagnostics

Fits 1982-1991 Chevy & GMC Trucks As Well As Many Other GM Cars

Direct Replacement For The Original Check Engine Light Driver Module

This Check Engine Lamp Driver Module is designed for GM vehicles equipped with early electronic engine control systems. The module controls the operation of the instrument panel Check Engine warning lamp, illuminating the indicator when the engine control module (ECM) detects a system fault.

In these systems, the ECM does not drive the dash warning lamp directly. Instead, it sends a signal to the lamp driver module, which then powers the indicator light in the instrument cluster. When the module fails, the Check Engine light may not illuminate during startup self-test or may fail to operate when a diagnostic trouble code is present, making proper system diagnosis difficult.

Replacement For Original GM & AC Delco Number 12020004, Standard Ignition Number RY536, Duralast Number DR139 & Echlin Number GPL300.

M&H Part Number: 12020004

$39.00

Controls Check Engine Warning Lamp

Designed to operate the instrument panel Check Engine light when the ECM detects a fault.

Supports Accurate Diagnostics

Ensures the Check Engine lamp can properly indicate stored trouble codes and system faults.

Check Out These Outstanding Features

Designed And Assembled In The USA
Designed and assembled in the USA using high-quality electronic components for reliable operation.
Restores Proper ECM-Triggered Operation
Allows the engine control module to properly activate the Check Engine lamp during fault conditions.
Correct Key-On Self-Test Operation
Restores proper illumination of the Check Engine light during the ECM startup self-test.
Essential For Diagnostic Trouble Codes
A functioning Check Engine lamp is required to properly display and retrieve diagnostic trouble codes on early GM ECM systems.
OE-Style Plug-In Connection
Replaces damaged, missing, or burned out original modules located in the dash harness swing-out hinged connector.

Fits The Following Vehicles

Year	Model	Application
1982	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1990	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1991	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1992	Camaro	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Chevelle	Malibu, El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Chevelle	Malibu, El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Chevelle	El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Chevelle	El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Chevelle	El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Chevelle	El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Chevelle	El Camino, Monte Carlo, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1990	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1991	Chevy Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Cutlass	Cutlass, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1990	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1991	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1992	Firebird	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1990	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1991	GMC Truck	Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Impala	Caprice, Impala, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Impala	Caprice, Impala, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Impala	Caprice, Impala, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Impala	Caprice, Impala, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Impala	Caprice, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Impala	Caprice, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Impala	Caprice, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	Impala	Caprice, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1990	Impala	Caprice, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Pontiac Fullsize	Bonneville, Grand Prix, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Pontiac Fullsize	Bonneville, Grand Prix, Parisienne, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Pontiac Fullsize	Bonneville, Grand Prix, Parisienne, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Pontiac Fullsize	Bonneville, Grand Prix, Parisienne, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Pontiac Fullsize	Bonneville, Grand Prix, Parisienne, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Pontiac Fullsize	Safari, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1988	Pontiac Fullsize	Safari, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1989	Pontiac Fullsize	Safari, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1982	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1983	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1984	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1985	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1986	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector
1987	Skylark	Regal, Replaces Damaged, Missing Or Burned Out Original Check Engine Light Driver Module Located In The Dash Harness Swing Out Hinged Retaining Connector

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