Solenoid Valve Supply Voltage
â–¶ How to fix
Check vehicle power supply system. Erase fault memory.
What you'll see
No driver-visible symptom recorded.
System reaction
No influence on functionality up to maximum defined voltage of the ECU. PWM for solenoid valves is still being adjusted according to the measured voltages (compressor solenoid valve and purge/regeneration solenoid valve). This does not apply to the external valve.
Diagnostic depth
Detection
Voltage measurement has detected that the common solenoid valve supply voltage has exceeded 32,0 V. This overvoltage failure will be deactivated when the solenoid valve supply voltage falls below 31,0 V.
Possible cause
U_Bat too high.