What happens when an ECM power relay goes dead?

What happens when an ECM power relay goes dead?

If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the battery, which will eventually cause it to go dead. The ECM power relay is one of the most important relays as it provides power for the vehicle’s computer system.

What are the symptoms of a failing starter relay?

Symptoms of a failing starter relay include problems starting the vehicle, the starter staying on after the engine is cranked, and a clicking noise coming from the starter. Sometimes the starter relay will stay on causing the starter motor gear to stay engaged with the engine ring gear, even when the engine is propelled on its own.

What kind of brake light does a 2002 Road King have?

But I can’t argue, it now works like it should. 2002 Road King Classic brake lights would not work but tail light was on.

Can a bad ignition relay cause a battery to die?

This means the circuit will not open after you remove the key, and the battery will drain. Therefore, if you are looking at a battery that had died when working the day perfectly before, the ignition relay could have been the cause.

Why does my 1999 Road King not start?

I haveA 1999 road king have not rode it in about three years ,gas tank had treatment ,has been started and ran fine however tried to start, will start with choke on. Sprayed carburetor with carb cleaner still starts only on choke ,goes off when choke is taken off. I appreciate the post for valuable information.

What should I do if I have a bad main relay?

You should still rule out other more likely problems like a dead battery or bad starter before jumping straight to a bad main relay. If you’ve verified that your battery has enough power, you can turn the key to different ignition spots and listen for a click from the fuse box.

If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the battery, which will eventually cause it to go dead. The ECM power relay is one of the most important relays as it provides power for the vehicle’s computer system.

But I can’t argue, it now works like it should. 2002 Road King Classic brake lights would not work but tail light was on.

What happens if the ECM fails on a car?

The fuel and ignition systems, as well as several other engine management functions, of many vehicles are controlled by the ECM. If the ECM or it’s relay fail, the entire engine management system will be left without power and will not function as a result.

What does intermittent no start mean on a car?

Share it! An intermittent no-start condition references any time where starting is possible sometimes, and other times the engine will not start. This implies that the difference between starting and failure to start is not understood.

Why is the battery cut off switch not working?

The switch does not need to be locked to keep the circuit active ! The lock is to prevent from inadvertently turning off the 12 volt system. 12 Volts should be present on 1 side of each relay, these are high current circuits with large fuses so do not short out these cables.