VOLVO
ICM-U1A1587 - Incomplete MOST Ring Reported By ICM. Bus Signal / Message Failures. Missing message
System
Infotainment (ICM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The ICM has found a break in the MOST network. Each control module on the MOST network is a link in a ring, so a break can switch off the infotainment functions. The fault may be in a connector, in the cable or in a control module on the network.
Mulige årsaker
- Dirt or damage at the connection for the MOST cable
- Open circuit in the MOST cable
- Damaged MOST transceiver in one of the control modules on the network
- A control module on the MOST network has no power supply
- A damaged control module on the MOST network
Hva du kan gjøre
- 1Check that the fuses for the control modules in the infotainment system are intact, since a control module without power breaks the network
- 2Check that the MOST connectors are clean and seated. Dirt or damage at the connection can break the signal
- 3Look for damage to the MOST cable, such as kinked or sharply bent sections
- 4Have a workshop with diagnostic equipment find where the break is. It lies in the control module before the one the diagnosis points to, or in the cable between them
- 5Switch the ignition on for a while after the repair and check that the code is not stored again
Symptomer du kan merke5
- The audio system does not work
- Navigation does not work
- Infotainment functions do not work
- Phone functions are missing or limited
- On S80 (07-), V70 (08-) and XC70 (08-) built before late August 2008: the audio unit, the radio or the phone does not work
Hva feilen kan påvirke1
- The infotainment functions can be switched off completely
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