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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Wheel Module (SWM) & Steering Angle Sensor (SAS) Diagnostic Trouble Codes >> SWM-0008: Communication With Steering Wheel Buttons Signal Too Low. Permanent Fault (1999-2004) >> Signal too low. Permanent fault >> Checking the contact reel

Checking the contact reel

Check that the upper connector on the switch for the cruise control is correctly connected.

Disconnect the upper switch on the switch for the cruise control. Take voltage readings between terminals #B1 (26) and #B3 (28) (on the cable connector). If the voltage is approximately 12 V the fault is probably in the switch for the cruise control.

Remedy as necessary.

Other information: 

Fig 1: Breakout Box
GLL100304Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Voltage Display
GLL101041Courtesy of VOLVO CARS OF NORTH AMERICA.