Diagnostic Trouble Code (DTC) Information

Condition

Fig 1: Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) SUM-0207 is stored if the suspension module (SUM) registers that there is no control of the relay for power supply to the solenoids.

NOTE: The test is carried out every other operating cycle.The Suspension module (SUM) defines an operating cycle as ignition on and ignition off.

Substitute Value

Four-C control is switched off.

HINT: For information about abbreviations, see Suspension System, Abbreviations .

Possible Source

Short-circuit to ground in the power supply cable for one of the solenoids
Short-circuit to ground in one of the solenoids
Defective control module.

Fault symptom[s]

General warning lamp lit
Message in the display
Four-C does not work.