VOLVO
TCM-0134 - Linear pressure solenoid SLC1. Faulty signal
System
Transmission Control Module (TCM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2001–2009), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (9)
- Volvo S60 (2001–2009)2006–2007Engine B5254T4, D5244T4, D5244T5 only · Transmission TF-80SC, TF-80SC AWD only
- Volvo S60 (2001–2009)2008–2009Engine D5244T4, D5244T5 only · Transmission TF-80SC only
- Volvo V70 (2000–2008)2006–2007Engine B5254T4, D5244T4, D5244T5 only · Transmission TF-80SC, TF-80SC AWD only
- Volvo V70 (2000–2008)2008Engine D5244T5 only · Transmission TF-80SC only
- Volvo V70 XC / XC70 (2001–2007)2006–2007Engine D5244T4 only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2006–2007Engine D5244T4 only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2008–2010Engine D5244T4, D5244T5 only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2011Engine D5244T18, D5244T4, D5244T5 only · Transmission TF-80SC, TF-80SC AWD only
- Volvo XC90 (2003–)2012All engines except: B5254T2, B6324S5 · All transmissions except: AW50/51 AWD
What does this fault code mean?
Linear pressure solenoid SLC1 gives a faulty signal. The control module has measured a current in the circuit that does not match what is expected, so SLC1 cannot regulate the system pressure. This can cause slipping, harsh or missing gear changes.
Possible causes
- Contact resistance in the connectors
- Open circuit in the control signal or signal ground wire
- The linear pressure solenoid has stuck
- The linear pressure solenoid does not function
What you can do
- 1Read and clear the fault code, road test and see whether it returns
- 2If you have a diagnostic tool: read the SLC1 solenoid value in live data during a road test and see whether it changes as gears are engaged
- 3If the value does not change, the fault is permanent; a workshop should then check the solenoid, which may be stuck
- 4Use a multimeter to check that the wire to the solenoid is not broken
- 5Have a workshop check the connectors to the control module for contact resistance and oxidation
Symptoms you may notice5
- The general warning lamp is lit
- The malfunction indicator lamp is lit
- Harsh gear changes
- Gear changes do not occur
- Gears slip abnormally
What the fault can affect1
- An auxiliary program in the control module is activated
General guidance for car owners. Diagnosis on the car can point to a different cause.