mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

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(3) Connect a 12V power supply (+) terminal to the terminal (3) of the control relay and measure the voltages at the terminal (2) when the (-) terminal

is connected to and disconnected from the terminal (7).

(4) If one of the above is improper replace the control relay.

ECM Power and Ground Supply Circuits

ENGINE CONTROL UNIT POWER GROUND

OPERATION

-

Grounding of the engine control unit

Troubleshooting hints
If there is incorrect or incomplete contact of the engine control unit's ground line, the engine control unit will not function correctly.

HARNESS INSPECTION

Electronic Control Unit (ECU)

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