time to expose the alarm module

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time to expose the alarm module Posted by Ken Fisher [Email] (more from Ken Fisher) on Tue, 20 Dec 2011 22:49:23

In Reply to: Wait! there's more, Rob T, Tue, 20 Dec 2011 20:44:53 Members do not see ads below this line. - Help Keep This Site Online - Signup

Take your trusty meter and using its record function, or with someone else turning the ignition key, try to measure that 11.9/12volts at pin 20 of the alarm module with the console shifter in park. No voltage means open console switch or broken wire.

If you find 12 volts at pin 20, proceed to jumper pins 20 and 8 to take the alarm module out of the circuit. The theft relay should latch every time your second pair of hands turns the ignition to START. If the jumper is in place across the module and the relay does not actuate, open the relay panel below the airbag. Apply 12 volts directly to pin 2 of the theft relay socket and the solenoid should engage (attach a ground to the ground point at the left of the relay panel). No solenoid engagement means the wire is broken/open from the relay pin 2 to the solenoid.

You have most likely:
a broken wire 80% probability
an open console switch 70% probability
a failed alarm module 50% probability
a failed theft relay 30% probability

good luck....

posted by 63.199.245...

Posts in this Thread:

Ignition switch OK- todays starting adventure, Rob T, Sat, 17 Dec 2011 09:33:24
- circuit 30 is the src voltage from the distribution box, Ken Fisher, Sat, 17 Dec 2011 17:51:52
  - Re: circuit 30 is the src voltage from the distribution box, Rob T, Tue, 20 Dec 2011 20:22:17
    - Wait! there's more, Rob T, Tue, 20 Dec 2011 20:44:53
      - time to expose the alarm module, Ken Fisher, Tue, 20 Dec 2011 22:49:23 <-- Viewing This Message
        Re: time to expose the alarm module, TML , Wed, 21 Dec 2011 07:40:43
        present the data as your audience can consume it, Ken Fisher, Wed, 21 Dec 2011 09:10:13
        I'm no statistician...., Rob T, Wed, 21 Dec 2011 08:51:21
        Re: time to expose the alarm module, Rob T, Wed, 21 Dec 2011 04:35:31
        my prediction is the console switch, Ken Fisher, Wed, 21 Dec 2011 09:47:42
        Re: my prediction is the console switch, Ken Fisher, Wed, 21 Dec 2011 09:56:16
        But car RAN before engine rebuild..., RayF, Wed, 21 Dec 2011 10:05:53
        he cannot START the car, Ken Fisher, Wed, 21 Dec 2011 10:12:31
        I know he cannot START the car, RayF, Wed, 21 Dec 2011 10:16:20
        Re: I know he cannot START the car, Rob T, Wed, 21 Dec 2011 10:58:15
        wire pair, Ken Fisher, Wed, 21 Dec 2011 11:23:03
        red wires ---distribution bus Circuit 30, Ken Fisher, Wed, 21 Dec 2011 11:52:44
        isolating the solenoid wire, Rob T, Wed, 21 Dec 2011 12:33:52
        Re: isolating the solenoid wire, Rob T, Wed, 21 Dec 2011 13:02:47
        it is difficult to get an answer this way, Ken Fisher, Wed, 21 Dec 2011 13:29:08
        Rob: Disconnect yellow wire at starter, re-test., RayF, Wed, 21 Dec 2011 13:14:05
        Re: Rob: Disconnect yellow wire at starter, re-test., Rob T, Wed, 21 Dec 2011 13:22:38
        Disconnected the wire, passed test, Rob T, Wed, 21 Dec 2011 13:47:15
        Success!, Rob T, Wed, 21 Dec 2011 15:59:15
        Congratulations!, Ken Fisher, Wed, 21 Dec 2011 16:27:38
        Re: Congratulations!, Rob T, Wed, 21 Dec 2011 17:08:31
        Not sure doubting alarm module is way to go, RayF, Wed, 21 Dec 2011 06:55:22
        Re: Not sure doubting alarm module is way to go, Rob T, Wed, 21 Dec 2011 07:26:27
  - Re: circuit 30 is the src voltage from the distribution box, Rob T, Sun, 18 Dec 2011 06:17:17
- Re: Ignition switch OK- todays starting adventure, dref, Sat, 17 Dec 2011 11:29:51
  - Re: Ignition switch OK- todays starting adventure, Rob T, Sat, 17 Dec 2011 14:12:38

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