Question about Hyundai Motor 1996 Elantra

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Is there a way to test a ECM

I plugged a diagnostic into my car and it came up with an error and was told my ECM is bad is there a way to test it?

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  • norman852 Apr 23, 2009

    I checked the fuse

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Check the ecm fuse 1st then see if a scanner will communicate with the ecm if it does then theres hope

Posted on Apr 23, 2009

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Posted on Jan 02, 2017

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I HAVE REPLACED THE COIL PACKS AND THE COMPUTER ON MY 2006 F150,BUT I STILL GET AN ERROR CODE OF 352.WHY IS THIS ?


P0352 - Ignition Coil B Primary/Secondary Circuit Description: See the description for DTC P0350. Possible Causes: See the possible causes for DTC P0350. Diagnostic Aids: See the diagnostic aids for DTC P0350. Application Key On Engine Off Key On Engine Running Continuous Memory Coil-on-plug (COP) ignition testing - GO to Pinpoint Test JF . GO to Pinpoint Test JF . Coil pack ignition testing - GO to Pinpoint Test JE . GO to Pinpoint Test JE .
P0350 - Ignition Coil Primary/Secondary Circuit Description: Each ignition primary circuit is continuously monitored. The test fails when the powertrain control module (PCM) does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the ignition module (integrated in the PCM). Possible Causes:
  • Open or short in the Ignition START/RUN circuit
  • Open coil driver circuit
  • Coil driver circuit shorted to ground
  • Damaged coil
  • Coil driver circuit shorted to VPWR
Diagnostic Aids: Use the 12-volt non-powered test lamp to verify START/RUN voltage at the ignition coil harness connector.
Check the coil driver circuit for open, short to VPWR, or short to ground. Application Key On Engine Off Key On Engine Running Continuous Memory Coil pack ignition testing GO to Pinpoint Test JC . Coil-on-plug (COP) ignition testing GO to Pinpoint Test JB . Without me testing , it's hard to say what you got going on ! Coil packs ? What engine does it have ? 5.4 L ? should have coil on plug ignition .

Jan 13, 2017 | 2006 Ford F-150 Regular

1 Answer

We have a 1994 Mitsubishi 3000 gt 5 speed and was told the ecm and starter are bad but could be a ground wire. How do we check this and how do you replace ecm?


First thing is to check the cheapest bit first. The ground wire (earth wire) was mentioned and as this wire controls all the electronics I would spend time ensuring that it is in good condition . tight and fixed to a clean -non-rusted --surface . Ensure battery terminals and posts are shiny clean and tight . Now if the battery has a dead cell then it indicates a starter problem. However a simple test with a load tester on the battery will show up where the problem may be.. Lastly the ECM may be tested at an auto electrical shop or tested with a known reliable spare replacement unit

Feb 21, 2014 | Mitsubishi 3000GT Cars & Trucks

1 Answer

Dodge Nitro ECM diagnosis


Are you getting spark on any cylinders ?

Apr 13, 2017 | Dodge Nitro Cars & Trucks

1 Answer

1994 Chevy Camaro ecm


so you get an engine swap and nothing has changed so what are you going to do then--get a car swap
first up find yourself an accredited service center and have the fault codes read properly
if the ECM is faulty-prove it by substituting it with a known good unit but I doubt that it is
do you know which 2 cylinders were not firing or were you just told that
were any injectors tested
was the fuel pressure tested
the only guarantee that you will get is that you will be wasting money unless you get facts on what to fix first

Mar 31, 2017 | 1994 Chevrolet Camaro

1 Answer

Car flashes engine codes


Hi Michael, The engine check light will display fault codes when connected to a scanner or a specified bridge is made onto the diagnostic socket. It is very unusual for the ECU to be defective (but not impossible). Have a scan carried out on the vehicle and the technician (You if you are) can determine what the problem is. Regards John

Mar 31, 2012 | Plymouth Acclaim Cars & Trucks

1 Answer

My check engine light comes on and the performance is sluggish i did a diagnostic test and the code was po607 now the more i drive the engine shuts off and the battery light comes on


http://www.obd-codes.com/p0607

Looks like either a bad battery or a bad ECM (engine computer). The code is happening because the ECM is losing power. Take the battery out and bring it to Autozone or similar store and have them do a "Load Test". If the battery is good, it may be the ECM that would need replacement.

May 29, 2010 | 2007 Toyota Corolla

1 Answer

Speedo quit working and car runs like it's sluggish


mr friend - we had same problems with our 1990 Buick Regal 3.8. fix all the same things and didn't help. took it to a dealer for a diagnostic. told us it was ecm. r i replaced it, runs great.

Jul 10, 2009 | 1992 Buick Regal

1 Answer

ECM Corrosion


you look for a white powder on the connections and pins with a greenish tent, if that is present you must replace the harness and the PCM

Jul 02, 2009 | 1999 Dodge Grand Caravan

1 Answer

Error codes


P0523 means the Oil pressure voltage to high. Your Oil pressure sensor may need to be replaced. P1682 means your charging system is to low. Your voltage regulator may be going bad or the whole alternator. p1693 means a Diagnostic trouble code (DTC) has been detected in the ECM or PCM which is related to the above DTC P0XXX codes. Good luck and hope this helps. Keep me posted, be glad to help

Jun 11, 2009 | 1999 Dodge Ram

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