VOLVO
ECM-3100 - Engine speed (RPM) sensor. Faulty signal
System
Engine Control Module (ECM)
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:
13 modelsC30 (2007–2013), C70 (2006–2013), C70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S40 (2004–2013), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V50 (2004–2013), V70 (1997–2000), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (47)
- Volvo C30 (2007–2013)2007Engine B5244S4, D4164T, D5244T8, D5244T9 only
- Volvo C30 (2007–2013)2008–2010Engine B5244S4, D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo C30 (2007–2013)2011Engine B5244S4, D4164T only
- Volvo C70 (2006–2013)2006–2007All engines except: B5254T3
- Volvo C70 (2006–2013)2008–2010All engines except: B5254T7, D4204T
- Volvo C70 (2006–2013)2011Engine B5244S4 only
- Volvo C70 Cabriolet (1998–2005)2000Engine B5244S only
- Volvo C70 Coupé (1998–2002)1999Engine B5254S DENSO only
- Volvo C70 Coupé (1998–2002)2000Engine B5244S only
- Volvo S40 (2004–2013)2004Engine B5244S4, B5244S5 only
- Volvo S40 (2004–2013)2005Engine B5244S4, B5244S5, B5244S7, D4164T only
- Volvo S40 (2004–2013)2006Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T8 only
- Volvo S40 (2004–2013)2007Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2008, 2010Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo S40 (2004–2013)2009All engines except: B4164S3, B4184S11, B4184S8, B4204S3, B5254T7, D4204T
- Volvo S40 (2004–2013)2011Engine D4164T only
- Volvo S60 (2001–2009)2001Engine B5244S, B5244S2 only
- Volvo S60 (2001–2009)2002Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo S60 (2001–2009)2003–2005Engine B5244S, B5244S2, B5244S6, B5244SG, B5244SG2 only
- Volvo S60 (2001–2009)2006All engines except: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4, D5244T, D5244T2
- Volvo S60 (2001–2009)2007All engines except: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009All engines except: B5204T5, B5244T5, B5254T2
- Volvo S70 (1997–2000)1999Engine B5254S DENSO only
- Volvo S70 (1997–2000)2000Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo S80 (1999–2006)1999–2000Engine B5244S, B5244S2 only
- Volvo S80 (1999–2006)2001, 2006Engine B5244S, B5244S2, B5244SG only
- Volvo S80 (1999–2006)2002–2005Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo V50 (2004–2013)2004Engine B5244S4, B5244S5 only
- Volvo V50 (2004–2013)2005Engine B5244S4, B5244S5, B5244S7, D4164T only
- Volvo V50 (2004–2013)2006Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T8 only
- Volvo V50 (2004–2013)2007Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T8, D5244T9 only
- Volvo V50 (2004–2013)2008–2009All engines except: B4164S3, B4184S11, B4184S8, B4204S3, B5254T7, D4204T
- Volvo V50 (2004–2013)2010Engine B5244S4, B5244S5, B5244S7, D4164T, D5244T13, D5244T8, D5244T9 only
- Volvo V50 (2004–2013)2011Engine D4164T only
- Volvo V70 (1997–2000)1999Engine B5254S DENSO only
- Volvo V70 (1997–2000)2000Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo V70 (2000–2008)2001Engine B5244S, B5244S2, B5244SG only
- Volvo V70 (2000–2008)2002Engine B5244S, B5244S2, B5244SG, B5244SG2 only
- Volvo V70 (2000–2008)2003–2005Engine B5244S, B5244S2, B5244S6, B5244SG, B5244SG2 only
- Volvo V70 (2000–2008)2006All engines except: B5204T5, B5244T5, B5254T2, B5254T4, D5244T, D5244T2
- Volvo V70 (2000–2008)2007All engines except: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2008All engines except: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2006–2007Engine D5244T4 only
- Volvo XC90 (2003–)2006–2007Engine D5244T4 only
- Volvo XC90 (2003–)2008–2010Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2011Engine D5244T18, D5244T4, D5244T5 only
- Volvo XC90 (2003–)2012All engines except: B5254T2, B6324S5
What does this fault code mean?
The control module counts the teeth on the flywheel or trigger plate using the engine speed sensor signal when the engine starts. If it finds the wrong number of teeth over a few crankshaft revolutions, the code is stored. The cause may be a temporary disturbance in the signal, an open or short circuit in the wiring, poor contact, or a speed sensor that is incorrectly fitted or damaged.
Possible causes
- Temporary faults in the engine speed sensor signal
- Open circuit in the signal wire
- Signal wire short-circuited to ground or supply voltage
- Contact resistance or oxidation in the connections
- Engine speed sensor incorrectly fitted or damaged
- Engine speed too high
What you can do
- 1Read the fault codes and check whether the engine speed sensor is active; codes for other sensors may be shown at the same time
- 2Check that the engine speed sensor connector is secure and free from oxidation
- 3Check that the engine speed sensor is correctly fitted and that the wiring is not chafed
- 4Use a multimeter to check that the signal wire is not broken and has no contact with ground or supply voltage
- 5Have a workshop replace the engine speed sensor if the fault remains after these checks
Symptoms you may notice2
- The engine does not start
- Message in the display
What the fault can affect1
- The control module uses the camshaft position sensor signal if it is working
General guidance for car owners. Diagnosis on the car can point to a different cause.