This instruction show you guide on how to remove and install motor control module for Detroit GHG17 engine.
Related Contents:
2023 Detroit Diesel Diagnostic Link DDDL 8.17 8.09 Free Download
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·m (11 lb·ft).
3.Connect the 21-pin and 120-pin engine harness connectors to the MCM. Close and lock the latch on the connectors.
4.Install the 120-pin electrical connector retaining bolts. Torque to 15 N·m (11 lb·ft).
5.Connect the batteries. Refer to Original Equipment Manufacturer (OEM) procedures.
6.Is the MCM being installed a replacement MCM?
6a Yes; using DiagnosticLink ® , program the MCM to the correct configuration. After programming, perform an Accumulated Fuel Mass Sync. For more information, refer to the DiagnosticLink ® help menu. Afterwards, Go to step 7.
6bNo; Go to step 7.
7.Turn the ignition ON (key ON, engine OFF). Observe DiagnosticLink ® for any diagnostic code(s). If any code(s) are logged, refer to the proper code diagnostics.
8.Start the engine.
9.Close the hood.
More repair cases for Detroit Diesel engines,please refer to:Detroit Diesel Engine Repair
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