Question about 1992 Buick Regal

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I replaced a faulty ignition control module on a 1992 Buick Regal.The engine started only after I disconnected the negative battery terminal to reset the computer and waited approximately 24 hours.For future reference ,will the car start IMMEDIATELY after after I disconnect the negative terminal or do I still need to wait 24 hours again?

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  • Jeff Armer Mar 27, 2015

    Is there a security light lit on the dash ?

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  • Buick Master
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This may be related to the antitheft system The system is known for turning off the starter and/or injectors when it fails. Is there a light on the dash that says SECURITY? This is a common problem worth looking into. http://www.diy-gm-security.com/

I replaced a faulty ignition control module on a 1 - 25611144-tjuc4yuqtyhwy1g5ckyd5etn-4-0.png

Posted on Mar 27, 2015

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  • Buick Master
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I've replaced several ignition modules on different makes and models, never did a reset, and they worked fine.

It may be possible that the problem was something else and not the ignition module? Waiting several hours for everything to cool down, may have helped. Did you have the ignition module tested?

If you do a reset, a few minutes should be plenty.

Posted on Mar 27, 2015

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How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


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Inspect/Test/Replace Hope this helps.

An ignition switch supplies voltage to the ignition control module and/or the ignition coil. Often an ignition sytem thas two wires connected to the run terminal of the ignition switch. On is connected to the module. The other is connected to the primary resistor and coil. The start terminal of the switch is also wired to the module.
You can check for voltage using either a 12-volt test light or a digital multimeter (dmm).
To use a test light:
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  • Disconnect the S terminal of the starter solenoid to prevent the engine from cranking when the ignition is in the run position.
  • Turn the key to the run position and probe the red wire connection to check for voltage.
  • Check for voltage at the battery terminal of the ignition coil using the test light.
  • Next, turn the key to the start position and check for voltage at the white wire connector at the module and the battery terminal of the ignition coil. If voltage is present, the switch and its circuit are okay.
To do the same test using a DMM:
  • Turn the ignition switch to the off position and back-probe, with the meter's positive lead, the power feed wire at the module.
  • Connect the meter's negative to a good ground at the distributor base.
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You have a short circuit somewhere. check thoroughly under the hood for an exposed or disconnected cable touching the frame or other metal components which are grounded to the negative terminal of the battery.

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Where is the ignition module located in a 1995 camry


Ignition Module REMOVAL & INSTALLATION
  1. Turn the ignition key to the OFF position.
  2. Separate the wiring harness connections.
  3. Unbolt the igniter.
  4. Loosen the nut holding the wire lead onto the coil.
  5. Tag and disconnect the wire lead.
  6. Lift the igniter off its mount.
  7. Installation is the reverse of removal.
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The following is related by not the same as the 'ignition module.':
Ignition Coil TESTING 1994–95 Models
  1. Turn the ignition key to the OFF position. Disconnect the negative battery cable. Wait at least 90 seconds from the time the negative battery was disconnected to start work. CAUTION
    Work must be started after 90 seconds from the time that the ignition switch is turned to the LOCK position and the negative battery cable is disconnected from the battery.
  2. Using a 5mm hexagon wrench, remove the 2 cap nuts and the V-bank cover. Fig. 1: Remove the V-bank cover, a 5mm hexagon wrench will be needed — 1MZ-FE engine 89552g58.gif

  3. Disconnect the ignition coil wiring from the coil being tested. Fig. 2: Disconnect the ignition coil wiring from the component being tested — 1MZ-FE engine 89552g59.gif

  4. Insect the primary coil resistance using an ohmmeter. Measure the resistance (cold) between the positive and negative terminals. Resistance should be between 0.54–0.84 ohms. Fig. 3: Attach an ohmmeter to the positive and negative terminals of the coil — 1MZ-FE engine 89552g60.gif

  5. If the resistance is not within specifications, replace the ignition coil.
  6. Reattach the ignition coil wiring.
  7. Reinstall the V-bank cover. Push on the cover until a click is felt, then tighten the cap nuts.
  8. Connect the negative battery cable. Reset any digital equipment such as radio memory and the clock if necessary.

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3 Answers

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1 Answer

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Check that the battery terminals are clean and that the battery connectors are a tight fit and cannot slide around the battery post or terminal.

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Have you checked for voltage at the demand side (as opposed to the supply side of various fuses)?

Check the main battery cables (the positive and the negative) and that the earth cables are a secure fit and have a good electrical connection.

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