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Ignition short electronics shorting out after ignition

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I have to tell you something. Electronic "shorts" are something that rarely exist. This is because a short circuit means that a new path has been created in a circuit. Usually this ends up destroying the circuit ( smoke, fire ) , so the chances of there being an actual short circuit is very rare. What you have is some sort of failure, but it is most likely not a short. Can you give me more details?

Posted on Apr 17, 2014

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Posted on Jan 02, 2017

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Have 2007 lincoln mkx with no heat on drivers side and heat on passenger side,actuators are working on all blend doors, any suggestions


Is this the Electronic Automatic Temperature Control (EATC) ? Have you check for DTC'S ?
Did you try a cold boot ?
Electronic Automatic Temperature Control (EATC) Module and Electronic Manual Temperature Control (EMTC) Module Cold Boot Process
The purpose of the cold boot process is to allow the EATC or EMTC module to reinitialize. To carry out the cold boot process, follow the steps below.
  1. NOTE: EATC only. Clear the DTCs.
  1. Turn the ignition switch to the OFF position.
  1. Disconnect the EATC or EMTC module electrical connectors.
  1. Inspect module connectors for:
    • corrosion.
    • pushed-out connectors.
    • incorrectly seated connector.
  1. Wait one minute.
  1. Connect the EATC or EMTC module electrical connectors.
  1. Turn the ignition switch to the ON position.
  1. Select any position except OFF on the EATC or EMTC module.
The EATC or EMTC module will now initialize.
Electronic Automatic Temperature Control (EATC) Module DTC Chart NOTE: Some PCM DTCs may inhibit air conditioning (A/C) operation. If any PCM DTCs are retrieved, diagnose those first. Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. DTC Description Action to Take B1251 A/C In-Vehicle Temperature Sensor Open Circuit Go To Pinpoint Test A . B1253 A/C In-Vehicle Temperature Sensor Circuit Short to Ground Go To Pinpoint Test A . B1255 A/C Ambient Temperature Sensor Open Circuit Go To Pinpoint Test B . B1257 A/C Ambient Temperature Sensor Circuit Short to Ground Go To Pinpoint Test B . B2427 RH A/C Solar Radiation Sensor Circuit Short to Ground Go To Pinpoint Test C . B2426 RH A/C Solar Radiation Sensor Open Circuit Go To Pinpoint Test C . B2795 LH A/C Solar Radiation Sensor Circuit Short to Ground Go To Pinpoint Test C . B2796 LH A/C Solar Radiation Sensor Open Circuit Go To Pinpoint Test C . B2014 Evaporator Temperature Sensor Circuit Open Go To Pinpoint Test D . B1947 Evaporator Temperature Sensor Circuit Short to Ground Go To Pinpoint Test D . B295A LH Blend Door Potentiometer Feedback Circuit Open Go To Pinpoint Test F . B295B LH Blend Door Potentiometer Feedback Short to Ground Go To Pinpoint Test F . B226C LH Blend Door Motor Stalled Go To Pinpoint Test F . B295C RH Blend Door Potentiometer Feedback Circuit Open Go To Pinpoint Test F . B295D RH Blend Door Potentiometer Feedback Short to Ground Go To Pinpoint Test F . B226D RH Blend Door Motor Stalled Go To Pinpoint Test F . B295E Mode Door Potentiometer Feedback Circuit Open Go To Pinpoint Test F . B295F Mode Door Potentiometer Feedback Short to Ground Go To Pinpoint Test F . B226E Mode Door Motor Stalled Go To Pinpoint Test F .
  • The temperature control is inoperative/does not operate correctly
  • Circuitry open/shorted
  • Door actuator
  • LH or RH blend door actuator/linkage
  • EMTC or EATC module
  • Go To Pinpoint Test F .

Nov 10, 2016 | Lincoln Cars & Trucks

1 Answer

What does code 42 mean


In your case you have direct ignition since your engine does not use a distributor. There is an ignition module that takes data from the cam and crank sensors to decide when to fire the coils.
There is a problem in the circuit of the module that manages spark timing. The module is what the coils are bolted to.
The module and harness would need to be tested, which requires a shop manual for the procedures.

Apr 23, 2013 | 1992 Buick LeSabre

1 Answer

Codes p0351 miss and is goverened at 2800 rpms.


P0351 is Ignition Coil A Primary/Secondary Circuit Malfunction.
Possible causes: - Open or short in the ignition coil circuit - Ignition coil circuit shorted to ground - Ignition coil connector - Damaged ignition coil - Damaged PCM or
Possible solution - If damage, repair ignition coil circuit - Replaced ignition coil - Replaced PCM or ECM When is the code detected? The test fails when the Powertrain Control Module (PCM) or Electronic Control Module(ECM) does not receive a valid pulse signal from the ignition coil.
P0351 Description: The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.
Hope this helps :)

Mar 07, 2011 | 2002 Dodge Intrepid

1 Answer

Fuel to carb, but backfiring, no problem with distributor


Could be 1. Ignition timing has slipped 2. cracked distributor (check inside for any small track lines) 3. rotor (if fitted) 4. crankshaft timing sensor 5. CDI unit shorting 6. plug leads shorting out 4. valve timing is out. possibly item 5 if its electronic ignition. As I'm not familiar with your vehicle being in the UK I can only generalise as to where to start looking for a fault, If you want to supply me with any more info I will do my best to help further.

Feb 02, 2011 | 1997 GMC Sierra

1 Answer

I have no spark in cylinders 2,4,6 on my 2002 Ford escape and three codes 354,355,356 Which means the same . After checkin those Three coils I found out , there is no negative Any advise?


P0354 - Ignition Coil D Primary/Secondary Circuit Malfunction.

Description of DTC:
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms:
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation
- Check Engine Light On
- No spark

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solutions:
- If damage, repair ignition coil circuit
- Replace ignition coil
- Replace PCM or ECM



P0355 - Ignition Coil E Primary/Secondary Circuit Malfunction.

P0356 - Ignition Coil F Primary/Secondary Circuit Malfunction.

Jan 18, 2011 | 2002 Ford Escape

1 Answer

P0352 code came up what might be the problem


P0352 - Ignition Coil B Primary/Secondary Circuit Malfunction
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

When is the code detected?
The test fails when the Powertrain Control Module (PCM) or Electronic Control Module(ECM) does not receive a valid pulse signal from the ignition coil.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation

Possible causes
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or

Possible solution
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM


Hope helps with this (remember to rate this answer).

Jan 14, 2011 | Mazda RX-8 Cars & Trucks

1 Answer

How do i reprogram electronic door locks


Programming Electronic Door Lock Control System NOTE: The electronic door lock control processor (14B001) erases all previous keyless entry remote transmitter (15K601) from memory when the keyless entry remote transmitters are programmed or reprogrammed. The electronic door lock control processor can store up to four keyless entry remote transmitters in memory.


  • To program (or reprogram) keyless entry remote transmitter into the electronic door lock control processor, perform the following steps:
  1. Turn ignition switch to the RUN position and momentarily short the two terminals of the program connector taped to the wire assembly and located behind the glove compartment. All doors should lock and then unlock. Remove shorting pin.
  1. Press any button on keyless entry remote transmitter. All doors should lock and then unlock to verify the keyless entry remote transmitter has been programmed. If door locks do not respond, press button again (up to three times maximum with the same keyless entry remote transmitter).
  1. Repeat the above step to program additional keyless entry remote transmitters into the electronic door lock control processor (up to four keyless entry remote transmitters maximum).
  1. Turn ignition switch OFF. All doors should lock and then unlock.
  1. Check operation.

Jun 05, 2010 | 1997 Ford Windstar

1 Answer

1987 Chrysler Fifth Avenue: red discharge light NEVER goes off, even when there's no key in ignition. Car does have electronic ignition conversion done. Any help would be appreciated


light on = direct short to ground
could be an error in the new harness or an actual "short"
problem is that this is not stock so unles I could see what was done it would be tough to fix on-line

May 26, 2010 | 1987 Chrysler Fifth Avenue

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