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
With setting of this failure operating of the solenoid valves is stopped. Following plausibility faults will be disabled if supply voltage drops below 15,1 V: - Not possible to switch off the compressor - No pressure drop during regeneration - Sensor plausibility check
Diagnostic depth
Detection
Voltage measurement has detected that the common solenoid valve supply voltage has fallen below 15,1 V. This undervoltage failure will be deactivated when the solenoid valve supply voltage exeeds 15,7 V.
Possible cause
Failure of charger voltage regulator, empty battery, high contact resistance in any connector or broken wire.