VOLVO
SUM-C1A0529 - Left Rear Height Sensor. General Electrical Failures. Signal plausibility failure
System
Aktivt understell (SUM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The height sensor at the left rear wheel gives a signal with a voltage outside the permitted range. The SUM interprets this as a fault, and when the signal is implausible the Four-C function is switched off.
Mulige årsaker
- Contact resistance or oxidation in the connectors
- A break in the signal wire between the height sensor and the module
- Damaged height sensor
Hva du kan gjøre
- 1Read and note the code, clear it and road test the car to see whether it returns
- 2Check the connector at the height sensor at the left rear wheel: it should be firm and free from oxidation
- 3Inspect the cable from the height sensor for breaks, chafing and loose clips, especially where it moves with the suspension
- 4If you have a multimeter, check that the signal cable has no open circuit
- 5With a diagnostic tool, watch the left rear height sensor value in live data as the rear of the car moves; it should change smoothly
- 6If the fault returns, have a workshop with diagnostic equipment check the height sensor and the wiring
Symptomer du kan merke2
- A message appears in the information display
- The Four-C function does not work
Hva feilen kan påvirke1
- The Four-C function is switched off
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