VOLVO
ECM-P064F00 - Unauthorized Software/Calibration Detected. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (2007–), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (3)
Was bedeutet der Fehlercode?
Although the code is named for software or calibration that is not approved, it concerns the signal to the A/C compressor's control valve. The ECM monitors the signal that operates the valve (solenoid), and an incorrect signal sets the code.
Mögliche Ursachen
- Signal wire shorted to supply voltage
- Signal wire shorted to ground
- Open circuit in the voltage supply
- Damaged control valve (solenoid)
Was Sie tun können
- 1Check that the fuses are intact
- 2With the ignition on, use a multimeter to check the signal wires to the control valve for shorts to supply voltage, shorts to ground and open circuits
- 3Check the connector to the control valve on the A/C compressor for loose contact
- 4If you have diagnostic equipment, read the A/C control status in live data while the A/C is switched on and the compressor is working
- 5Tell the workshop if the car has received new software or calibration, and have it check the control module and the control valve
Symptome, die Sie bemerken können1
- The A/C system does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.