VOLVO
ECM-671C - Camshaft position, exhaust. High
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (14)
- Volvo S60 (2001–2009)2005–2006Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo S60 (2001–2009)2008–2009Engine B5204T5, B5244T5, B5254T2 only
- Volvo S80 (1999–2006)2005–2006Engine B5204T5, B5244T4, B5254T2, B6294S2, B6294T only
- Volvo V70 (2000–2008)2005Engine B5204T5, B5244T4, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2006–2007Engine B5204T5, B5244T5, B5254T2, B5254T4 only
- Volvo V70 (2000–2008)2008Engine B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2005All engines except: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Engine B5244T4, B5254T2 only
- Volvo V70 XC / XC70 (2001–2007)2007Engine B5254T2 only
- Volvo XC90 (2003–)2005–2006Engine B5254T2, B6294T only
- Volvo XC90 (2003–)2007–2012Engine B5254T2 only
- Volvo XC90 (2003–)2013–2014Engine B5254T9 only
- Volvo XC90 (2003–)2015
What does this fault code mean?
During adaptation the engine control module has found that the exhaust camshaft sits too far forward, ahead of the crankshaft. This is treated as a fault, and the fault code is stored. Control of the exhaust camshaft is then switched off.
Possible causes
- Poor quality oil
- Camshafts are set incorrectly
- The timing belt has slipped off the teeth
- Faulty reset valve
- Mechanical fault in the VVT unit
What you can do
- 1Check the engine oil level and quality. Poor oil can cause the fault
- 2Have a workshop check the basic setting of the camshaft and that the timing belt is correctly positioned
- 3Read the adaptation with the diagnostic tool at idle when the engine is warm, and compare it with the acceptable range
- 4Have a workshop clean the reset valve for the exhaust camshaft, or replace it if it has stuck
- 5If the fault remains, have a workshop assess whether the VVT unit is damaged
Symptoms you may notice1
- The malfunction indicator lamp lights
What the fault can affect1
- Control of the exhaust camshaft is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.