HOW ECM WORKS

NASHIF143

MEMBER
2010 ALL OTHER MAKES ALL OTHER MODELS
4 CYL
15 MILES

HIII, iam ashif actually iam a mechanic by profession in india, iam having a problem with my customer car, the problem relates with ECM of the car, I repair a whole accident car, the front of the car was fully damaged but the engine works. The front efron {engine support} change after this then after we connect the whole engine and coneect the whole sensors and plug sockets and strats the car, then we stop the car and again start after 20 min while running the engine it suddenly stop, when we check the dashboard lighting we are not getting the ECM light, I check al the fuse and check the ecm, when we open the ecm we find the burn smell, but iam getting this how it is possible after running the running it suddeently stop and burn, so iam getting this how the ecm fire. Can you please tell me answer and tell me one thing how to chack the circuit if the ECM

1 Reply

MIKE H R

MECHANIC
3,094 POSTS

Get the ecm to where you can see it. See if there are any burnt wires comming from it. Make sure you have diDisconnected the battery, check all the wires to see if there are any other burnt wires around where the damage was done. With any impact there is a chance a wire came loose or came or or could be pinched grounding out. With the ecm putting off a burnt smell then most likely it is bad now from pinched or broken wire received during the accident. You will have to repair the wiring first before putting in another ecm. Don't install a new ecm until you have checked for any shorts. Since it ran for 20 minutes the short is in a wire that does not draw a lot of current.