VOLVO
TCM-0112 - Line pressure solenoid SLS. Signal too high. Intermittent fault
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:
9 modelsC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (19)
- Volvo C70 Cabriolet (1998–2005)2000–2005Transmission AW55-50/51SN only
- Volvo C70 Coupé (1998–2002)2000–2002Transmission AW55-50/51SN only
- 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)2000Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo S80 (1999–2006)1999–2000Transmission AW55-50/51SN only
- Volvo S80 (1999–2006)2001–2006Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo V70 (1997–2000)2000Transmission AW50/51 AWD, AW55-50/51SN only
- 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 / XC70 (2001–2007)2001–2002
- Volvo V70 XC / XC70 (2001–2007)2003–2007Transmission AW50/51 AWD only
- Volvo XC90 (2003–)2003All transmissions except: 4T65 AWD
- Volvo XC90 (2003–)2004–2007Transmission AW50/51 AWD, AW55-50/51SN only
- Volvo XC90 (2003–)2008–2014Transmission AW50/51 AWD only
- Volvo XC90 (2003–)2015
What does this fault code mean?
The line pressure solenoid SLS has been registered with an intermittent fault: at some point the control module saw too high a signal in the circuit to the solenoid. The fault does not have to be present now. The control module may then switch off all activation of the solenoids in the gearbox.
Possible causes
- Control signal wire or signal wire short-circuited to supply voltage
- Control signal wire and signal wire short-circuited to each other
- Defective solenoid
What you can do
- 1Read and clear the fault code, road test and see whether it returns
- 2Use a multimeter to check that the wires to the solenoid have no contact with the battery positive and are not short-circuited to each other
- 3Check that the wiring to the gearbox is not chafed or pinched
- 4If you have a diagnostic tool: see in live data whether the line pressure solenoid changes status when the gears shift
- 5If the fault returns, have a workshop check the solenoid and the control module
Symptoms you may notice4
- The orange general warning lamp is lit
- Gear changes do not occur
- The lock-up function does not work
- The automatic transmission warning lamp is lit
What the fault can affect3
- The control module emergency program Emergency mode III is activated
- The transmission limp-home program Limp-home is activated
- The line pressure can become too low, which causes high wear in the gearbox
General guidance for car owners. Diagnosis on the car can point to a different cause.