APS node: timeout in CAN communication.
• Check the APS for DTCs. • If DTCs cannot be read from the APS: - check CAN connection to APS unit - check power supply and ignition signal to the APS • Check wiring and connectors for the orange CAN-bus • Measure the resistance (with the battery disconnected) between pins B6 and B15. 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 APS are degraded (examples listed below): - instrument cluster display of pneumatic pressures - engage of power take-off EG
Diagnostic depth
Communication error. Communication with the Air Processing System (APS) interrupted.
• Faulty APS unit • APS unit disconnected from the orange CAN bus