VOLVO
AEM-7A12 - Rheostat signal. Signal too low / high or signal missing. Permanent fault
System
Tilbehørsmodul (AEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Vis modeller per årsmodell og motor (4)
Hva betyr feilkoden?
The AEM has registered a signal that is too low or too high, or a break, on the rheostat wire to the radio, and the fault is permanent. The rheostat function on the audio system does not work. The wire may be shorted to ground or supply voltage, or have a break, and the radio may be faulty.
Mulige årsaker
- Rheostat wire to the radio shorted to ground
- Rheostat wire to the radio shorted to supply voltage
- Break in the rheostat wire to the radio
- Faulty radio
Hva du kan gjøre
- 1Follow the rheostat wire to the radio and look for chafing or damage that could cause a short or a break
- 2Check the connectors at the radio for oxidation and loose connections
- 3If the fault remains, have the radio replaced by a workshop after checking the wire
Symptomer du kan merke1
- The rheostat function on the audio system does not work
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