Detroit GHG17 Engine Motor Control Module Removal and Installation Guide

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Detroit GHG17 Engine

This instruction show you guide on how to remove and install motor control module for Detroit GHG17 engine.

Detroit GHG17 Engine

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Removal of the Motor Control Module

1.Shut off the engine, apply the parking brake, chock the wheels, and perform any other applicable safety steps.

2.Open the hood.

3.Disconnect batteries.

4.Remove the 120-pin electrical connector retaining bolts.

5.Release the latch on the harness connector to remove the 21-pin and the 120-pin electrical connectors from the Motor Control Module (MCM).

6.On a rear sump oil pan, disconnect the oil dipstick tube from the MCM.

7.Remove the four bolts holding the MCM to the engine and remove the MCM.

 

Inspection of the Motor Control Module

Inspect as follows:

1.Inspect the Motor Control Module (MCM) for damage and replace if required.

2.Inspect the ISO mounts for damage and replace if required.

 

Installation of the Motor Control Module

NOTICE

Ensure the MCM metal housing does not come in contact with the chassis.

Note : Do not ground the MCM housing. This can result in false codes being logged.

1.Confirm that vehicle battery power is disconnected and the ignition is in the OFF position.

2.Install the MCM to the cylinder block with four bolts and eight isolators. Torque the MCM-to-cylinder block bolts to 15 N

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