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How do you test if an ignition control module is good without engine running

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  • Cars & Trucks Master
  • 4,977 Answers

You use a volt/ohm meter and test then compare to specs. if out of specs then replace module.

Posted on Apr 19, 2015

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6ya6ya
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Posted on Jan 02, 2017

daves944
  • 1050 Answers

SOURCE: 1991 honda accord "no spark"

There is a relay mounted way up under the dash on the driver side. It is about 1"x1"x2" and it says Mitsuba on it. This is the PGMFI relay, sometimes called the main relay or fuel injection relay. It is very likely the problem. You can buy another one, or there was a bulletin on how to repair it. You need to take it out, pop the cover off, and resolder the cracked solder joints on the pc board that the relays are mounted on. Really not that hard if you have a little soldering experience. If not, just buy another one, about 50 bucks.cb28323.jpg

Posted on Mar 26, 2009

chuck943
  • 783 Answers

SOURCE: where is the ignition module control located on 1996 ranger 2.3 e

It does not have an ignition control module. The PCM (powertrain control module) fires the coil pack based on signal it recieves from the crankshaft position sensor and the camshaft position sensor.

Posted on Apr 08, 2009

relaga58
  • 158 Answers

SOURCE: 1997 nissan altima has no spark at the plugs.

get those sensors connected to the output of the module tested cause its ruining the module

Posted on May 10, 2009

  • 14 Answers

SOURCE: engine died & wont start no spark ignition coil tested good

try your ignition module in the distributor much more likely. just install rebuilt distributor if that is the problem , if you just replace module the main distributor assem will **** out shortly after.
Make sure you check for broken timing belt also it is one of those two!

Posted on May 27, 2009

  • 1 Answer

SOURCE: Ignition Control Module Test

Idle / surging comes from the intake to throttle body rubber connection

Posted on Sep 09, 2009

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Chevy s10 shuts off while driving, sometimes sputters first, changed fuel filter, plugs and wires are good, what else could it be?


Have you run a fault code test on the engine control module? plugs, fuel filter will not cause a engine stall. You have another problem like a crankshaft position sensor or camshaft position sensor or ignition control module or wiring or a ECM issue, so that is why you must do the fault code test. I need to know the year to help you with doing that test..

Apr 11, 2017 | Chevrolet S 10 Cars & Trucks

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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

Code p025a fuel pump module tested relay it is good why is there power on # 85 with key off


DTC P025A: Fuel Pump Flow Control Module Enable Circuit
The engine control module (ECM) supplies voltage to the fuel pump flow control module (FPCM) when the ECM detects that the ignition is on. The voltage from the ECM to the FPCM remains active for 2 seconds, unless the engine is in crank or run. While this voltage is being received, the FPCM closes the ground switch of the fuel pump and also supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel rail pressure.
Circuit/System Testing
  1. Ignition OFF, disconnect the harness connector at the FPCM.
  2. Ignition OFF, install a test lamp between the control circuit terminal 13 and ground.
  3. Ignition ON, verify that a test lamp illuminates for 2 seconds.
  4. ?‡'
    If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.

  5. If all circuits test normal, replace the FPCM.
Relay for what ? Which engine do you have LY6 or non LY6

Aug 24, 2015 | 2009 Chevrolet Silverado 1500

2 Answers

I have a 02 dodge grand caravan sport with 0351,0352,0700 codes...car runs good then shakes and even stalls at times,but not all the time...i have replaced ignition coil,wires,plugs,and catalytic...


po700 code just means you have codes
P0351-IGNITION COIL #1 PRIMARY CIRCUIT

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- PCM

P0352-IGNITION COIL #2 PRIMARY CIRCUIT

TEST NOTE
This symptom is diagnosed using the test P0351-IGNITION COIL #1 PRIMARY CIRCUIT.

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- PCM
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Jun 14, 2011 | 2002 Dodge Grand Caravan

2 Answers

I have a 1991 gmc sle 4x4 5 spd standard. the problem is i was running my truck around town, drove it to my friends place shut it off, hour or so later go to start it nothing. it doesnt have spark,and the...


If all the above is as you described it, and the battery is good and the engine will crank over, then it sounds like a faulty control module.

The ignition module located inside of the distributor is what generates the signal that the ECM (Engine Control Module) uses to time and fire the fuel injectors, as well as the signal to run the fuel pump and the dwell signal timing to fire the ignition coil. A faulty ignition module can cause any one of these systems to malfunction.

That does sound like a malfunction with the ignition module inside of the distributor, and you can remove the ignition module and have it tested for free at most auto part stores.

If you do purchase a new ignition module be sure that it does come with a silicone grease or a die-electric compound because it is a heat sink and the ignition module will burn up without it.

To install the new ignition module first clean out the mounting surface inside of the distributor. Then completely coat the metal contact surface under the ignition module with a thick coat the silicone grease or die-electric compound and do not leave any of the metal contact surface of the ignition module un-coated with the silicone grease or die-electric compound, and be very careful not to over-tighten the ignition module or it will be damaged.

Jun 22, 2010 | GMC K1500 Cars & Trucks

2 Answers

96 chev 1500 no power to fuel pump. changed the


possibly fuse or could be oil pressure swich

Jun 17, 2010 | 1996 Chevrolet C1500

3 Answers

Symptoms of a bad pick up module on a 1996 GMC K2500 Suburban


What I see the most often is a stalled engine with a loss of spark when driving. Once the engine cools off it will sometimes start and run fine for a short while then do the same thing again. Often, but not always, the pickup up coil or ignition module [both are under the distributor cap] have to heat up quite a bit before they will act up. I replace about 10 ignition modules for every one pickup coil but either one can cause the same identical stalling problem. I keep a few known good modules around as test units so I can just replace a suspected bad module and road test it to see if it works. Another thing that can go wrong in these distributors are the magnets built into the pole piece. A weak or cracked magnet can cause all kinds of odd problems such as stalling when placed in reverse, misfires over 1,000 rpm, etc. Worn bushings in the distributor can also cause problems. As far as a specific test you can do to see which part is failing? I wish there was a relaible one. I've tried using a lab scope and module testers to diganose the culprit but you have to catch the problem as it's happening for those tests to be accurate.

Jun 17, 2010 | 1996 GMC Suburban

2 Answers

Electrical Problem???


Try having the charge system/ alternator load tested, if thats ok have the ignition module and coil pack tested at a local parts store.

Apr 21, 2010 | 1997 Jaguar XJ6

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