CCS node: timeout in CAN communication.
• Check the CCS for DTCs. • If DTCs can not be read from the CCS: - check CAN connection to CCS unit - check power supply and ignition signal to the CCS • Check wiring and connectors for the green CAN-bus • Measure the resistance (with the battery disconnected) between pins B3 and B12. It should be approximately 60 ohm (one 120 ohm termination resistor in each end of the CAN-bus).
What you'll see
No driver-visible symptom recorded.
System reaction
• Functions dependent on information from CCS are degraded. Examples listed below. - air condition (i.e. AC compressor) will be disabled - quick heat-up functionality will be disabled - instrument cluster display of cab interior temperature - engine radiator fan speed control
Diagnostic depth
Communication error. Communication with the Climate Control System (CCS) interrupted.
• Faulty CCS unit • Open circuit on the green CAN bus