Timeout in CAN communication from Steering Angle Sensor (SAS) node
* Check CAN connection to SAS unit * Check power supply connection to SAS unit • Check wiring and connectors for the Environment Sensor CAN-bus • Measure the resistance (with the battery disconnected) between pins B5 and B14. It should be approximately 60 ohm (one 120 ohm termination resistor in each end of the CAN-bus). • I none of the solutions above helps, replace the SAS unit.
What you'll see
No driver-visible symptom recorded.
System reaction
• Functions dependent on information from SAS are degraded. - SDS (Scania Driver Support) - LDW (Lane Departure Warning ) - ESP (Electronic Stability Programme) - EST (Electrohydraulic Tag Axle Steering System)
Diagnostic depth
Communication error. Communication with the Steering Angle Sensor (SAS) interrupted.
* SAS unit disconnected from the Environment Sensor CAN bus * SAS unit has not power supply * Faulty SAS unit