VOLVO
ECM-8700 - Power supply. Internal fault
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 (10)
- Volvo S60 (2001–2009)2001Engine D5244T only
- Volvo S60 (2001–2009)2002–2003, 2006Engine D5244T, D5244T2 only
- Volvo S60 (2001–2009)2004–2005Engine D5244T, D5244T2, D5244T3 only
- Volvo S80 (1999–2006)2001Engine D5244T only
- Volvo S80 (1999–2006)2002–2006Engine D5244T, D5244T2 only
- Volvo V70 (2000–2008)2001Engine D5244T only
- Volvo V70 (2000–2008)2002–2003, 2006Engine D5244T, D5244T2 only
- Volvo V70 (2000–2008)2004–2005Engine D5244T, D5244T2, D5244T3 only
- Volvo V70 XC / XC70 (2001–2007)2003–2006Engine D5244T only
- Volvo XC90 (2003–)2003–2006Engine D5244T only
What does this fault code mean?
The engine control module (ECM) has found a fault in the voltage stabilizer that supplies the sensors. The code is set when the fault is detected. It is an internal fault in the control module, so the module needs replacing. A new control module is delivered without software and must be programmed after fitting.
Possible causes
- Defective engine control module
What you can do
- 1Read the code, clear it and check whether it returns
- 2Check that the battery is in good condition and that the earth connections are tight and free from oxidation
- 3Have a workshop replace and program the control module; programming can only be done with workshop equipment
Symptoms you may notice3
- The engine cuts out
- The engine does not start
- The engine runs unevenly
General guidance for car owners. Diagnosis on the car can point to a different cause.