Skip the auto shop - Our mechanics make house calls

Q: my ECM keeps frying and im not sure where the dead short is coming from it fried 2 ecm's already. Help

asked by on

please help me :(
My car has a manual transmission.

A: Most often when there are issues like this,...

Most often when there are issues like this, the problem ends up being a poor electrical connection somewhere, or an improper or poor ground. There could also be a problem in the wiring harness that is sending power back somewhere it shouldn’t be, causing the ECM to fail. Problems like this are impossible to diagnose over the computer, but you can do a little bit yourself by checking all the ground and power wires for proper voltage or ground, and check resistances of different sections of the harness. Beyond that, you will need to have a qualified technician diagnose your electrical issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Changed my brake pads, now there is a grinding noise and the brake is spongy

The grinding noise you may be hearing may be a sign of worn out brake pads grinding on the brake rotors. When the brake pads wear down beyond a specific measurement, this kind of sound is common and may also...

Q: Car won't go into gear. 2002 Audi A4 Quattro

Hi there - Your symptoms describe the behavior to expect when your clutch hydraulics go out (clutch master and clutch slave cylinders). Check your clutch fluid level - it may be low. If the fluid level is low, this usually...

Q: Fault code p0120

Diagnostic trouble code P0120 sets when the ECM (or PCM) receives an output from TPS sensor circuit A that is outside of the specified voltage range in relation to TPS sensor circuit B. The code will also set if TPS...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.