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    Fault Codes
    VOLVO
    TCM-0083
    VOLVO

    TCM-0083 - Transmission output speed sensor. Signal too low

    System

    Transmission Control Module (TCM)

    Volvo models this fault code applies to

    This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.

    Applies to the following models:

    12 models

    C70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S40 (1996–2004), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V40 (1996–2004), V70 (1997–2000), V70 (2000–2008), V70 XC (1998–2000), V70 XC / XC70 (2001–2007), XC90 (2003–)

    Show models by year and engine (30)
    • Volvo C70 Cabriolet (1998–2005)1999Transmission AW50-42 only
    • Volvo C70 Cabriolet (1998–2005)2000All transmissions except: M56
    • Volvo C70 Cabriolet (1998–2005)2001–2005Transmission AW55-50/51SN only
    • Volvo C70 Coupé (1998–2002)1999All engines except: B5254S DENSO · Transmission AW50-42 only
    • Volvo C70 Coupé (1998–2002)2000All transmissions except: M56
    • Volvo C70 Coupé (1998–2002)2001–2002Transmission AW55-50/51SN only
    • Volvo S40 (1996–2004)2001–2004
    • Volvo S60 (2001–2009)2001–2002
    • Volvo S60 (2001–2009)2003All transmissions except: M58
    • Volvo S60 (2001–2009)2004–2009Transmission AW50/51 AWD, AW55-50/51SN only
    • Volvo S70 (1997–2000)1999Transmission AW42 AWD, AW50-42 only
    • Volvo S70 (1997–2000)2000All transmissions except: M56, M58
    • Volvo S80 (1999–2006)1999–2004
    • Volvo S80 (1999–2006)2005–2006All transmissions except: M56
    • Volvo V40 (1996–2004)2001–2004
    • Volvo V70 (1997–2000)1999All engines except: B5202FS, B5252FS, D5252T MSA 15.7, GB5252S, GB5252S2 · Transmission AW42 AWD, AW50-42 only
    • Volvo V70 (1997–2000)2000All transmissions except: M56, M58
    • Volvo V70 (2000–2008)2000–2002
    • Volvo V70 (2000–2008)2003All transmissions except: M58
    • Volvo V70 (2000–2008)2004–2007Transmission AW50/51 AWD, AW55-50/51SN only
    • Volvo V70 (2000–2008)2008Transmission AW55-50/51SN only
    • Volvo V70 XC (1998–2000)1999Engine B5254T only · Transmission AW42 AWD only
    • Volvo V70 XC (1998–2000)2000Transmission AW42 AWD only
    • Volvo V70 XC / XC70 (2001–2007)2001–2002
    • Volvo V70 XC / XC70 (2001–2007)2003–2007Transmission AW50/51 AWD only
    • Volvo XC90 (2003–)2003, 2015
    • Volvo XC90 (2003–)2004All transmissions except: M66 AWD
    • Volvo XC90 (2003–)2005–2006All transmissions except: M66 AWD, TF-80SC AWD
    • Volvo XC90 (2003–)2007Transmission AW50/51 AWD, AW55-50/51SN only
    • Volvo XC90 (2003–)2008–2014Transmission AW50/51 AWD only

    What does this fault code mean?

    The speed signal from the sensor on the transmission is used to select the correct gear, and the control module also works out the speed from the engine speed sensor signal. The fault means the control module has registered that the speed signal is too low.

    Possible causes

    • Contact resistance in the connections
    • Shorts between the signal wires (+ and -), or from either wire to ground or voltage
    • Defective transmission speed sensor

    What you can do

    1. 1Read off the fault code, clear it and road test the car to see whether it comes back
    2. 2Have a diagnostic tool? Read the transmission speed in live data while driving and see that the value follows how fast the car is going
    3. 3Use a multimeter to check that the signal cables to the speed sensor are not shorted to ground or supply voltage, and check the connectors for contact resistance and oxidation
    4. 4Have a workshop check the speed sensor and the connectors at the control module; if the sensor is faulty it should be replaced

    Symptoms you may notice4

    • General orange warning lamp on
    • No lock-up function
    • Harsh gear shifting
    • Automatic transmission warning lamp flashing

    What the fault can affect1

    • The Emergency mode II program has been activated

    General guidance for car owners. Diagnosis on the car can point to a different cause.

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