Transmission Control Module wiring?

Discussion in 'General Motoring' started by Chris, Jun 30, 2004.

  1. Chris

    Chris Guest

    92 Grand Voyager, 3.3L. I think the module I'm looking at is the
    transmission control module. It's a square box in the engine compartment on
    the firewall, passenger side next to 2 relays. I need a wiring diagram for
    it. Is it the transmission control module?

    Chris
     
    Chris, Jun 30, 2004
    #1
  2. Chris

    SN Guest

    Yes, that is the TCM. I have the schematics in the 1991 FSM which should be
    the same. What is it that you are trying to troubleshoot? Have you pulled
    the TCM trouble codes to help guide you?
     
    SN, Jun 30, 2004
    #2
  3. Chris

    Chris Guest

    I posted a few days ago about noise on a CB radio. It's so bad on one
    channel that I can't hear anything else. The TCM is what I traced it to. I
    found 2 wires that are 12V sources. One is always on, the other is on with
    the ignition switch. I have been able to suppress the noise with very small
    capacitors but I want to make sure I'm not suppressing any AC control
    signals. Can you email me a copy of the schematic or what the wires coming
    out go to?

    Thanks,

    Chris
    |
    | | > 92 Grand Voyager, 3.3L. I think the module I'm looking at is the
    | > transmission control module. It's a square box in the engine compartment
    | on
    | > the firewall, passenger side next to 2 relays. I need a wiring diagram
    for
    | > it. Is it the transmission control module?
    |
    | Yes, that is the TCM. I have the schematics in the 1991 FSM which should
    be
    | the same. What is it that you are trying to troubleshoot? Have you pulled
    | the TCM trouble codes to help guide you?
    |
    |
     
    Chris, Jul 1, 2004
    #3
  4. Chris

    Chris Guest

    The 2 pins are 11, which is blue and 56, which is red/white. The capacitors
    are either a 150pf on 11 or 220pf on 56. It takes the noise from an S-meter
    reading of 8 down below 1.

    Chris

    Chris
    |
    | | > 92 Grand Voyager, 3.3L. I think the module I'm looking at is the
    | > transmission control module. It's a square box in the engine compartment
    | on
    | > the firewall, passenger side next to 2 relays. I need a wiring diagram
    for
    | > it. Is it the transmission control module?
    |
    | Yes, that is the TCM. I have the schematics in the 1991 FSM which should
    be
    | the same. What is it that you are trying to troubleshoot? Have you pulled
    | the TCM trouble codes to help guide you?
    |
    |
     
    Chris, Jul 1, 2004
    #4
  5. Chris

    SN Guest

    I'll e-mail you the two scans shortly.
     
    SN, Jul 1, 2004
    #5
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