Saturn Trouble code PO706 Transmission range sensor...?

Discussion in 'General Motoring' started by murtman, Aug 19, 2005.

  1. murtman

    murtman Guest

    I drive a '96 saturn sl1, 112k miles, just got an oil change. I went
    to autozone because my service engine soon light was on. The trouble
    code PO706 came up which was "Transmission range sensor circuit
    range/performance." The guys at autozone had never seen that before,
    and there is little to no information on the internet regarding that.
    Does anyone know exactly what I need to fix?
     
    murtman, Aug 19, 2005
    #1
  2. murtman

    blah blah Guest

    For future reference the code is P-Zero-706 not "o".

    Here is information on this code minus the pics:
    -------------------------------
    1998 Saturn SL1

    DTC P0706
    Circuit Description

    Object Number: 902195 Size: MF
    Click here for detailed picture of above image.

    The PCM determines which gear is selected by a combination of opens and
    grounds in circuits 771, 772, and 773 at the transaxle park/neutral
    position switch. Each combination indicates a specific selection on the
    manual shift quadrant, P, R, N, D, 2, or 3. Circuit 776 is either open
    or grounded to produce an even number of grounded circuits, 771, 772,
    773, and 776. Invalid data indicates that the sum of the grounded
    circuits 771, 772, 773, and 776, in 1 of the manual shift quadrants is
    equal to an odd number.
    Conditions for Setting the DTC

    DTC P0706 is set when the PCM has detected an invalid bit pattern for
    more than 3.5 seconds, twice per ignition cycle.

    The difference between DTC P0706 and DTC P0705 is that a possible bit
    pattern error due to misadjustment could set a DTC P0706.
    Test Description

    1. This step verifies the conditions for DTC P0706 still exist.
    2. If the shift cable or switch is misadjusted, a DTC P0706 may set
    while in certain gear shift positions.
    3. DTC P0706 may set due to 1 or more circuits being shorted to
    ground. By disconnecting the switch, the PCM should read all circuits as
    high and the scan tool should display OPEN.
    4. This step will isolate an open circuit. As each individual circuit
    is grounded, the PCM/TCM should see the low signal and the tool should
    display INVALID.
    5. The PCM/TCM supplies a 12 volt signal to each transaxle
    park/neutral position switch circuit. This step tests for that voltage.
    6. DTC P0706 may have been set due to 1 of the circuits being shorted
    to voltage. This step verifies if a short to voltage exists.

    Repair Verification

    Monitor DTC menu Code Status for Pass Since Code Clear and Pass This
    Ignition Cycle. When both have passed, the repair is verified.

    Criteria for pass:

    * No active DTC set.
    * Two valid selector positions are decoded. You must move the
    shifter to obtain a pass.

    Diagnostic Aids

    When the PCM detects a fault in the circuit, an open, ground, or short,
    the PCM will open the circuit internally to protect the circuit.

    If no circuit problems can be detected, check the shift cable and switch
    adjustment.

    Important

    Refer to the chart from DTC P0705.

    This DTC will cause the transaxle to start out in 2nd gear.
     
    blah blah, Aug 19, 2005
    #2
  3. murtman

    marx404 Guest

    What year SC2? I assume that it is a 2000 or newer as that seems to be a
    OBDII code. ???Is this manual or automatic tranny? It would help if you spec
    this important stuff.

    a.. P0706 - Trans Range Switch Performance is a generic Saturn code, you
    need to look further into this and know the specifics of your car. Best I
    can do to help.

    http://answers.yahoo.com/question/index?qid=20071008091658AAyHcji
     
    marx404, Feb 12, 2008
    #3
  4. murtman

    Oppie Guest

    One might also infer that since the car is raced - that there might be some
    non-stock equipment onboard. Might be significant to note this.
     
    Oppie, Feb 12, 2008
    #4
  5. murtman

    marx404 Guest

    then would start at the "neutral safety switch".
     
    marx404, Feb 13, 2008
    #5
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.