Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The position sensor for the left rear suspension is powered from the control module. Diagnostic trouble code (DTC) SUM-0091 is stored if the Suspension Module detects that the power supply to the sensor is too low. The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.
- SUM-0091: Position sensor for the rear suspension.

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 for the suspension system, see Suspension system, abbreviations Description and Operation.

Possible source
- Short-circuit to ground in the power supply to the sensor
- Contact resistance in the terminals
- Defective position sensor
- Defective control module.

Fault symptom[s]
- General warning lamp lit
- Message in the display
- Four-C does not work.