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Thread: P0705 - Transmission Range Sensor A Circuit

  1. #1
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    P0705 - Transmission Range Sensor A Circuit

    So, got this code on my Automatic P5.

    I can't find very much info on it. This thread seams to be the most detailed...
    https://www.mazdas247.com/forum/show...ouble-shooting

    But the links to the pics are dead and that is a manual.

    Is the Neutral Safety switch the same thing as the Transaxke Range Switch?

    Service manual lists these possible causes...
    TR switch malfunction
    Short to power between TR switch terminal C and PCM terminal 32
    Short to power between TR switch terminal G and PCM terminal 6
    Short to power between TR switch terminal F and PCM terminal 9
    Short to power between TR switch terminal E and PCM terminal 7
    Damaged connector between TR switch and PCM
    PCM malfunction

    Is the PCM near the OBDII port?

    Any detailed advice on troubleshooting?
    13 Fit | 09 Ody | 09 Miata | 07 Mazda 3 | 03 Protege5 | 02 Protege

  2. #2
    The Diagram Dude pcb's Avatar

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    Your TR switch probably crapped out.

    You probably need a new one.

    The Diagram Dude

  3. #3
    The Diagram Dude pcb's Avatar

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    You can test the one you have...

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  4. #4
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    So, the TR Switch is the same as the Neutral Safety Switch?
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  5. #5
    The Diagram Dude pcb's Avatar

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    The 5speed needs to know you're in neutral or the clutch is in.
    An automatic needs to know if you're in park or neutral.

    They kinda do the same thing so the names are kinda blended together.

    Safety First !!
    Ya don't wanna start it in gear..
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  6. #6
    The Diagram Dude pcb's Avatar

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    If you order something make sure it doesn't look like this..
    This is for a manual transmission.

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  7. #7
    The Diagram Dude pcb's Avatar

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    I've got one switch on my neutral safety switch.(MTX)
    You've got 8 tiny switches inside your Transaxle Range switch, any bad switch can set off your cell (the ECU needs to know every gear you're in)

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  8. #8
    ......................... i12drivemyMP5's Avatar
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    I see 03 P5.........is this sportronic or regular auto?.........or does that matter in this case?

  9. #9
    The Diagram Dude pcb's Avatar

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    It looks like the same TR switch for Sport and regular transmission.
    The Sport version has some extra inputs from the shifter to the ECU.

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  10. #10
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    It is a regular Auto. Didn't even know there was a sportronic (paddles correct?)

    Part arrive's tomorrow. Note sure when I'll have time to put it on. Weekend is looking busy may just burn the midnight oil and get it done tomorrow night.

    I'll post back success or failure. Haven't read through the whole adjusting it, it is a couple of pages in the service manual.
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  11. #11
    The Diagram Dude pcb's Avatar

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    Quote Originally Posted by smetzger View Post
    It is a regular Auto. Didn't even know there was a sportronic (paddles correct?)...
    This...

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  12. #12
    ......................... i12drivemyMP5's Avatar
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    No paddles, only slapstick..................


  13. #13
    The Diagram Dude pcb's Avatar

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    Quote Originally Posted by smetzger View Post
    .. Haven't read through the whole adjusting it, it is a couple of pages in the service manual.
    It's pretty complicated to install and adjust, considering it's a relatively simple part.
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  14. #14
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    Well, I do have the sportronic.

    Install wasn't that bad. Didn't really have to adjust anything once I slapped it on. Shifted through the gears about 50 times. So far no issues.
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