Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The Suspension Module (SUM) receives information from the keypad unit. Diagnostic trouble code (DTC) SUM-0151 is stored if the control module registers that the voltage is too low when a button is pressed. The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.
- SUM-0151: Keypad. Signal too low.

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
- The Four-C function is blocked.

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

Possible source
- Contact resistance in the terminals
- Short-circuit to ground in the power supply to the keypad
- Defective keypad.

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