Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information SWM-E001

Condition




The control modules transmit and receive information via a standardized serial communication method - CAN (Controller Area Network). The diagnostic trouble code (DTC) is stored if the control module registers serious interference (CAN communication blocked).

Note! In the event of system communication problems, it is not possible to communicate with the control module. Therefore it will only be possible to read off the fault if it is intermittent.

Substitute value
- The control module shuts itself off ("bus-off").

Hint: The control module will remain shut off until the power supply is broken (15, 30, X). When the power supply is connected the control module will make a new attempt to communicate.

Possible source
- Short-circuit between the control area network (CAN) wiring
- Open-circuit in the control area network (CAN) wiring
- Internal fault in the control module
- Internal fault in another control module in the same part of the control area network (CAN).

Fault symptom[s]
- Windshield wipers only operate at lowest speed
- Front windshield washing does not work
- Rear windshield washing does not work
- The turn signal lamp switch does not work
- Cruise control does not work at all
- The turn signal lamps do not work.