What is ECU working of ECU?
An engine control unit (ECU), also commonly called an engine control module (ECM) is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. The whole mechanism of the EEMS is controlled by a stack of sensors and actuators.
What is an ECU malfunction?
When a car’s Engine Control Unit (ECU) senses a problem or malfunctioning within the vehicle, it triggers an ECU fault code that will turn on the check engine light. ECU fault codes, also known as diagnostic trouble codes (DTC) are part of the on-board diagnostic (OBD II) system in your car.
Where is the ICM on a Honda Civic?
Gently pull off the dust shield/inner cover of the distributor housing to access the ICM. Figure 1. Location of three Phillips screws. Figure 2. Phillips screw is located underneath the rotor. Figure 3. The dust shield can be pulled off. Disconnect the black/yellow, white/blue, and yellow/green wires from the ICM.
What kind of ECU does a Honda Goldwing have?
2008 08 GL1800 GOLDWING ECU COMPUTER CDI ECM VIDEO! CONTROL ELECTRONIC UNIT Honda 2005 GL1800 1800 GoldWing OEM Rear Trunk Lock & Open Control Unit – Good!
How do you replace Ignition Control Module on Honda Civic?
Remove two Phillips screws underneath the ICM to replace it. Simply install the new ICM with the same screws. Reattach the wires connecting the ICM to the distributor housing. Reattach the inner cover and rotor. Secure the rotor with the Phillips screw. Reattach and secure the distributor cap.
What should the multimeter reading be on a Honda Civic?
The multimeter should give a reading of about 12 volts. If the voltage of this wire is correct, test the white/blue and yellow/green wires. They should give off about 12 volts as well. Lastly, check for continuity between the blue wire of the ICM and the distributor housing.
Gently pull off the dust shield/inner cover of the distributor housing to access the ICM. Figure 1. Location of three Phillips screws. Figure 2. Phillips screw is located underneath the rotor. Figure 3. The dust shield can be pulled off. Disconnect the black/yellow, white/blue, and yellow/green wires from the ICM.
Remove two Phillips screws underneath the ICM to replace it. Simply install the new ICM with the same screws. Reattach the wires connecting the ICM to the distributor housing. Reattach the inner cover and rotor. Secure the rotor with the Phillips screw. Reattach and secure the distributor cap.
When to test and replace Ignition Control Module?
If you’ve taken all the diagnostic procedures but none of them have solved the problem, try testing and replacing the ignition control module (ICM). This unit relays the signal from the distributor to the spark plugs, and often times, bad grounds, water entering the distributor, or excessive heat may cause the ICM to become faulty.
The multimeter should give a reading of about 12 volts. If the voltage of this wire is correct, test the white/blue and yellow/green wires. They should give off about 12 volts as well. Lastly, check for continuity between the blue wire of the ICM and the distributor housing.