Diagnostic trouble code (DTC) information CCM-E001

Condition 

Fig 1: Identifying Climate Control Module Faceplate

Courtesy of VOLVO CARS OF NORTH AMERICA.

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).

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).
  NOTE:

  In the event of missing CAN communication, but with the power supply still on, the climate control module (CCM) will function for a few minutes after the key has been removed (Limp-home function).

Fault symptom[s] 

• The climate control system functions after the key has been removed.
• The lower row of buttons on the climate control system does not function.
• The air conditioning (A/C) compressor does not start, or runs sporadically.
• Misting on the windows and/or door mirrors.
• Does not deadlock.
• Does not open from deadlock.
• Private locking of the trunk lid does not function. (S80, S60).
• Temporary disengagement of the detectors is not possible.