1993 E34 M20 535 - 4HP22 automatic electric won't respond

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Thread: 1993 E34 M20 535 - 4HP22 automatic electric won't respond

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  1. 1993 E34 M20 535 - 4HP22 automatic electric won't respond 
    #1
    BMW Fanatic
    Car Details
    marko84's Car Details
    Model of Car:
    E34
    Year of Manufacture:
    1990
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon

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    Mar 2011
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    Vrnjacka Banja
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    So far I haven't been able to move my car or should I say to activate the transmission (4HP22 automatic electric). By analyzing the TCU connector I noticed some anomalies during the speed sensor test on the transmission itself on the brown and white wires. The brown wire (pin 8) with ground should display 500 kohms but I get nothing. The white wire (pin 27) which is connected on the connector with the brown wire (pin 8) should display 800 ohms to 1.6 Kohms and I get nothing. When I raised the rear end of the car and accelarated to 70 km/h I should have received a voltage of more than 3.5V on the brown (pin 8) and white (pin 27) wire but I got nothing. I suspect on the speed sensor on the transmission. How and in what way can I fool the TCM that my speed sensor is working? Can I do that by adding a resistor or by adding some power? I must state that it's impossible to change that sensor in my country and my car is immovable.
     
     

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  3.  
    #2
    BMW Guru
    Car Details
    SlowTech's Car Details
    Model of Car:
    330ci
    Year of Manufacture:
    2003
    Transmission Type:
    Manual
    Car Body Type:
    Coupe
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    Mar 2009
    Location
    North West
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    Can anyone assist the OP with this issue?
     
     

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