VOLVO
ECM-P064519 - A/C Clutch Relay Control Circuit. General Electrical Failures. Circuit current above threshold
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (8)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo S80 (2007–)2010–2011Engine D4164T only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2010–2011Engine D4164T only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The ECM can switch off the A/C function when torque demand is high, and it monitors the signal to the A/C unit. The code is set when a fault is found in that signal, and the circuit is drawing too much current.
Possible causes
- Poor contact or oxidation at the connections
- Signal wire shorted to supply voltage, or a faulty A/C relay; see fault code ECM-P064712
- Signal wire shorted to ground; see fault code ECM-P064611
- Poor contact or oxidation at the connectors, or an open signal wire; see fault code ECM-P064513
What you can do
- 1Check that the relevant fuses are intact
- 2Where possible, test the relevant functions with the buttons, controls or a test drive to see whether the fault shows
- 3If you have diagnostic equipment, check the A/C relay status in live data with the engine running and the A/C switched on
- 4Use a multimeter to check that the signal wire is not shorted to ground or supply voltage and has no open circuit
- 5If the wiring is intact but the fault remains, have a workshop check the compressor and the A/C relay
Symptoms you may notice2
- The A/C system does not operate
- Temperature control or air conditioning fails to work
General guidance for car owners. Diagnosis on the car can point to a different cause.