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Feilkode DD30

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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Feilkode DD30

Post by RAVE » Mon May 25, 2020 8:54 am

Får opp batterisymbol etter motoren har gått litt etter oppstart?

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Re: Feilkode DD30

Post by scot850 » Mon May 25, 2020 7:14 pm

A quick translation: Error (?) Code DD30.

Does the battery symbol appear after the engine has run for a little after starting?

It shouldn't. That would highlight a fault. Don't know what the code is.

2000 V70 R - still being an endless PITA
2006 XC70
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Re: Feilkode DD30

Post by RickHaleParker » Mon May 25, 2020 7:46 pm

CEM-DD30 Communication with the alternator control module (ACM). Signal missing

The central electronic module (CEM) transmits and receives information via a standardized serial communication method - LIN (Local Interconnect Network). The diagnostic trouble code (DTC) is stored if the control module registers serious interference such as blocked LIN communication with the alternator control module (ACM).

The diagnostic trouble code (DTC) can be detected when the ignition key is in position II for at least 10 seconds and the battery voltage exceeds 10.5 V.
Note! In the event of CEM-DDxx diagnostic trouble codes (DTCs), the central electronic module (CEM) must not be replaced as the diagnostic trouble code (DTC) indicates a short-circuit in one or more conductors in the LIN network. The central electronic module (CEM) is the only control module that monitors the voltage level in the LIN wiring. The central electronic module (CEM) is therefore the only control module that can store a diagnostic trouble code (DTC) for a short-circuit in one of the cables to ground or supply voltage. Do not replace the central electronic module (CEM) in the event of a LIN fault unless VIDA fault-tracing has indicated that the central electronic module (CEM) has an internal fault.

Substitute value

Possible source
  • Damaged generator (GEN).
    Problems with voltage supply to generator.
    Short-circuit between the LIN wiring
    Open-circuit in the LIN wiring
    Internal fault in another control module in the same part of the LIN network.
Fault symptoms
The battery discharges.


CEM-DD30 Kommunikasjon med vekselstrømsmodul (ACM). Signalet mangler

Den sentrale elektroniske modulen (CEM) overfører og mottar informasjon via en standardisert seriell kommunikasjonsmetode - LIN (Local Interconnect Network). Diagnostisk problemkode (DTC) lagres hvis kontrollmodulen registrerer alvorlige forstyrrelser, for eksempel blokkert LIN-kommunikasjon med vekselstrømsgeneratoren (ACM).

Diagnostisk problemkode (DTC) kan oppdages når tenningsnøkkelen er i stilling II i minst 10 sekunder og batterispenningen overstiger 10,5 V.
Merk! I tilfelle CEM-DDxx diagnostiske problemkoder (DTC), må den sentrale elektroniske modulen (CEM) ikke byttes ut, da den diagnostiske problemkoden (DTC) indikerer en kortslutning i en eller flere ledere i LIN-nettverket. Den sentrale elektroniske modulen (CEM) er den eneste kontrollmodulen som overvåker spenningsnivået i LIN-kablingen. Den sentrale elektroniske modulen (CEM) er derfor den eneste kontrollmodulen som kan lagre en diagnostisk problemkode (DTC) for en kortslutning i en av kablene til jord eller forsyningsspenning. Ikke bytt ut den sentrale elektroniske modulen (CEM) i tilfelle av en LIN-feil med mindre VIDA-feilsporing har indikert at den sentrale elektroniske modulen (CEM) har en intern feil.


Mulig kilde
  • Skadet generator (GEN).
    Problemer med spenningsforsyning til generator.
    Kortslutning mellom LIN-kablingen
    Åpen krets i LIN-kablingen.
Feil symptomer
Batteriet tømmes.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, B8444S TF80 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger. V8 conversion in progress.

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