End position sensor (pin C4) is short circuit to ground
â–¶ How to fix
- Check wiring to end position sensor (T541) - Check connectors on both ACS (E751) and end position sensor.
What you'll see
As long as the articulation sensor is working and is calibrated, no symptoms will be noticed.
System reaction
Amber ACS warning lamp
Diagnostic depth
Detection
Voltage on digital input 2 is below 10 % of the supply voltage.
Possible cause
- Defect cable connecting ACS (E751) and end position sensor (T541). - Defect connectors on either ACS or end position sensor - Defect end position sensor (internal circuit broken)