P0845 Code - Transmission Fluid Pressure Sensor/Switch 'B' Circuit

Discussion in 'P - Powetrain Codes' started by fault code, Mar 26, 2018.

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    fault code Administrator Staff Member

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    What does P0845 Mean?

    Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above. When you see P0845 engine fault code on your engine code reader this description will help you.

    What are the common causes of P0845 ?
    • Faulty Transmission Fluid Pressure Sensor 'B'
    • Transmission Fluid Pressure Sensor 'B' harness is open or shorted
    • Transmission Fluid Pressure Sensor 'B' poor electrical connection
    • Transmission Valve Body


    How do you troubleshoot P0845 ?

    Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

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