VOLVO
ECM-8030 - Secondary battery relay. Temperature too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The secondary battery relay links the back-up battery to the car's electrics while the starter turns and the engine is restarted after an auto-stop, and the engine control module monitors it. The too-high temperature fault is most likely caused by the relay being overloaded. Automatic start and stop of the engine then does not work. The fault applies to the C30, S40 (04-) and V50.
Mulige årsaker
- Loose connection or oxidation in the connector
- Short circuit in the connections
- Damaged secondary battery relay
Hva du kan gjøre
- 1Check that the fuses are intact
- 2Test the automatic start and stop function at idle to see whether it works
- 3Check the connectors at the secondary battery relay for looseness, contact resistance and oxidation
- 4Look for chafed or shorted wiring to the relay
- 5If the fault remains, have a workshop with diagnostic equipment check the secondary battery relay
Symptomer du kan merke1
- Automatic engine start and stop does not work, both while driving and at idle
Hva feilen kan påvirke1
- The automatic engine start and stop function is switched off
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