Pressure sensor
â–¶ How to fix
Renew the control unit and erase the fault code.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The voltage from the pressure sensor on the trailer and parking brake circuit has been outside permitted limits.
Possible cause
Internal fault in the control unit due to a defective pressure sensor or because the pressure sensor lost its calibration when the cover was removed from the control unit.