VOLVO
TCM-0014 - Lock-up solenoid SL. Signal too low. Intermittent fault
System
Transmission Control Module (TCM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 XC (1998–2000), XC90 (2003–)
Show models by year and engine (12)
- Volvo C70 Cabriolet (1998–2005)1999–2000Transmission AW50-42 only
- Volvo C70 Coupé (1998–2002)1999All engines except: B5254S DENSO · Transmission AW50-42 only
- Volvo C70 Coupé (1998–2002)2000Transmission AW50-42 only
- Volvo S70 (1997–2000)1999–2000Transmission AW42 AWD, AW50-42 only
- Volvo S80 (1999–2006)1999–2000All transmissions except: AW55-50/51SN
- Volvo S80 (1999–2006)2001All transmissions except: AW50/51 AWD, AW55-50/51SN
- Volvo S80 (1999–2006)2002–2006Transmission 4T65EV, 4T65EV-GT only
- 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)2000Transmission AW42 AWD, AW50-42 only
- Volvo V70 XC (1998–2000)1999Engine B5254T only · Transmission AW42 AWD only
- Volvo V70 XC (1998–2000)2000Transmission AW42 AWD only
- Volvo XC90 (2003–)2003–2006Transmission 4T65 AWD only
What does this fault code mean?
The signal to lock-up solenoid SL is too low, which means the wire is short-circuited to ground. The solenoid then cannot be activated when it should be. The fault is intermittent, so it may have been present on an earlier occasion without being active now.
Possible causes
- Contact resistance in the connections
- Open circuit in the signal wire
- Defective solenoid
What you can do
- 1The fault is intermittent: clear the fault code, road test the car and see whether it returns
- 2Check the connectors on the control module and the transmission for contact resistance and oxidation
- 3If the fault remains, have a workshop measure the signal wire to the lock-up solenoid against ground, and replace the solenoid if the wire is intact
Symptoms you may notice4
- The general orange warning lamp is lit
- The malfunction indicator lamp (MIL) is lit
- No lock-up function
- Gear shifts may feel harsh, because gear slip times are not adapted when driving at high altitude
What the fault can affect1
- The control module does not switch the lock-up solenoid on
General guidance for car owners. Diagnosis on the car can point to a different cause.