No Reverse Light switch question...
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Thread: No Reverse Light switch question...

  1. #1

    I need to replace the reverse light switch on my 2000 Saab 9-5 estate 2.0t SE AUTO.

    Would GM Part No. 90482454 fit ?

    if not doe's anyone know the correct part number for the switch ?

    Thanks

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  3. #2
    Full throttle
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    The part number you quote is shown on the parts catalogue as the one for the manual gearbox. It is the current part and also the replacement for all the previous switches.

    The reverse light switch on automatic cars is incorporated into the selector lever position sensor.

    What are the symptoms that lead you to think the switch has failed?

  4. #3
    What are the symptoms that lead you to think the switch has failed?[/b]
    no reverse lights i tried fitting two new bulbs and still nothing, so i put it down to the switch

    SID doe's not display any errors...

  5. #4
    Full throttle
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    It's rare on the estate, but it could be a broken wire on the way to the rear of the car. Someone recently reported finding a break in the loom, not in the hinge though, in the loom near the back of the car. One of the crimp connections was loose.

  6. #5
    Full throttle mark e's Avatar
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    From what I can see, the reversing lights on the auto are illuminated via a relay rather than DICE as is the case for manual models. As a result there's no monitoring of the circuit.

    I presume you've checked the fuse? #2 in the passenger compartment fuse board. The relay is in the main dash relay box. To check if the switch is faulty, unplug the transmission range switch connector and apply 12V to pin 7 of the free connector with the ignition on.

  7. #6
    yeah I have checked the fuse and the bulbs

    Is there a relay in the engine bay i could try renewing to see if it's at fault ?

    Thanks

  8. #7
    Full throttle mark e's Avatar
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    No- see what I said above

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