Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
The Suspension module (SUM) controls individual damping in each shock absorber using a valve that is affected by a solenoid.
The Suspension module (SUM) monitors the voltage to the solenoids in the shock absorbers.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The voltage to the solenoids is too high.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Engine on and vehicle speed over 2 km/h.
- The test is carried out every other operating cycle. The Suspension module (SUM) defines an operating cycle as ignition on and ignition off.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

The diagnostic trouble code (DTC) specifies the relevant damper solenoid.
- SUM-C110C12: Damper solenoid left front
- SUM-C110D12: Damper solenoid right front
- SUM-C110E12: Damper solenoid left rear
- SUM-C110F12: Damper solenoid right rear





Substitute value
- Deactivated Four-C function.

Possible source
- The power supply to the solenoids has a short-circuit to battery voltage.

Fault symptom[s]
- Message in information display
- Four-C function not working