VOLVO
TCM-012E - Reverse gear. Wrong gearratio
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?
The transmission control module (TCM) has registered that drive forward or reverse does not engage when the gear selector is moved to R or D. The fault is due either to contact resistance, a solenoid stuck in the OFF or ON position, or a mechanical fault in the gearbox. Gear changes may then fail.
Possible causes
- Contact resistance in connections, or a solenoid stuck in the OFF or ON position
- Mechanical faults in the gearbox
What you can do
- 1Read and clear the fault code and road test to see whether it returns
- 2If you have a diagnostic tool: activate the solenoids one at a time and check that each one's status changes between off and on
- 3Have a workshop check the connectors and wiring to the gearbox control module for contact resistance and oxidation
- 4If a solenoid is stuck or a mechanical fault is present, have a workshop decide whether the gearbox needs replacing
- 5After a repair, a workshop should reset the adaptation and the fluid quality counter
Symptoms you may notice3
- The general warning lamp is lit
- The malfunction indicator lamp is lit
- Gear changes do not occur
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.