LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2007 >> C70 Automatic >> Repair and Diagnosis (Single Page) >> Steering >> Electronic Steering >> Steering Wheel Module (SWM) Diagnostic Trouble Codes >> SWM-Dd02: Communication With Control Modules. Communication Problems (2006-2011) >> Diagnostic Trouble Code (DTC) Information SWM-Dd02
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code (DTC) Information SWM-Dd02

Condition 

Fig 1: Identifying Steering Wheel Module (SWM)
GLL139843Courtesy of VOLVO CARS CORPORATION

The control modules communicate with each other in a network via a standardized serial communication interface - LIN (Local Interconnect Network) - to exchange information.

The control modules transmit and receive information. The diagnostic trouble code (DTC) is stored if the steering wheel module (SWM) registers that the communication is disrupted or disabled.

NOTE:

In the event of a system communication fault it is not possible to communicate with the steering wheel module (SWM). Therefore it will only be possible to read off the diagnostic trouble code (DTC) if the fault is intermittent.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

Possible Source 

Fault symptom[s]