VOLVO
ECM-P300212 - Hybrid/EV Electronics Coolant Valve #2. General Electrical Failures. Circuit short to battery
System
Motorstyring (ECM)
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Hva betyr feilkoden?
The code concerns valve 2 in the cooling circuit for the drive components of the hybrid. The engine control module (ECM) monitors the valve all the time and sets the code when the signal wire to it is shorted or has an open circuit. If the valve does not work, cooling of the drive components may stop.
Mulige årsaker
- Mechanical fault on the valve
- Electrical fault on the valve
- Short circuit or open circuit in the wires to the valve
Hva du kan gjøre
- 1Read the code with a diagnostic tool and check whether it is active or only stored
- 2Check that the fuses are intact; their location is shown in the owner's manual
- 3Look for chafed wiring to valve 2 where it may have touched positive supply
- 4Use a multimeter to check that the wires to valve 2 have no contact with positive supply when the connector is unplugged
- 5Have a workshop check valve 2 if the fault remains, since mechanical or electrical faults in the valve are possible causes
Symptomer du kan merke2
- The combustion engine runs in HYBRID mode more often than expected
- Warning symbol and text message in the display
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