VOLVO
CPM-U300362 - Battery Voltage. Algorithm Based Failures. Signal compare failure
System
Verbrennungsheizung (CPM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
9 ModelleS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
Was bedeutet der Fehlercode?
The fault code says the heater control module and the central electronic module have different system voltages. The fault is only worth investigating if it has been active for a long time in the same driving cycle, or if you notice the heater not working. In other cases the fault code can be erased. The heater cannot be started until the fault code has been erased.
Mögliche Ursachen
- Contact resistance, oxidation or loose connections
- Damaged charging system
- Open circuit or short to ground in the supply to the auxiliary heater
- Blown fuse
- Poorly charged battery
Was Sie tun können
- 1Erase the fault code and drive the car for a while. If it does not return, no action is needed.
- 2With the ignition off, check that the fuse for the heater is intact. A half-blown fuse can cause faults that come and go.
- 3With the engine off, measure the battery voltage with a multimeter. Charge or replace the battery if the voltage is weak.
- 4Look for corrosion, looseness and oxidation at the connections to the heater and to the battery. Clean or tighten them.
- 5If the fault returns although the battery and connectors are in order, have a workshop check the charging system and the supply to the heater.
Symptome, die Sie bemerken können2
- Poor heating in the cabin
- The parking heater does not work
Was der Fehler beeinflussen kann1
- The heater cannot be started until the fault code has been erased
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.