Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The diagnostic trouble code (DTC) is stored if the suspension module (SUM) registers that the software and control module are not compatible. The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

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 (Continuously Controlled Chassis Concept) control is switched off.

Hint: For information about abbreviations, see Suspension system, abbreviations Description and Operation.

Possible source
- The software and suspension module (SUM) are not compatible.

Fault symptom[s]
- General warning lamp lit
- Message in the display
- Four-C (Continuously Controlled Chassis Concept) does not work.