VOLVO
ECM-8020 - Battery relay. Temperature too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (3)
Was bedeutet der Fehlercode?
The battery relay disconnects the battery and starter circuit from the rest of the electrical system when the engine is restarted after an auto-stop, and the engine control module monitors it. The too-high temperature fault is probably caused by an overload in the battery relay. While the fault is active, automatic start and stop of the engine does not work. The fault applies to the C30, S40 (04-) and V50.
Mögliche Ursachen
- Loose connection or oxidation in the connector
- Short circuit in the connections
- Damaged battery relay
Was Sie tun können
- 1Check that the fuses are intact
- 2Try the automatic start and stop function at idle to see whether it works
- 3Check the connections at the battery and the battery relay for looseness, contact resistance and oxidation
- 4Check that the wiring to the battery relay has no damage or short circuits
- 5If the fault remains, have a workshop with diagnostic equipment check the battery relay
Symptome, die Sie bemerken können1
- Automatic engine start and stop does not work, both while driving and at idle
Was der Fehler beeinflussen kann1
- The automatic engine start and stop function is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.