Error P0417 on JAC все модели
AIR System Switching Valve B Circuit Shorted
Code
P0417
Vehicle
JAC все модели
Category
Powertrain
Severity
⚠️ MediumSymptoms
- Check Engine light is on
- Increased emissions during cold start
- Extraneous noise when the AIR system is operating
- The error can only appear during a cold start
- Potential increase in fuel consumption
Causes
- Short circuit in switching valve B wiring (to ground or power)
- Faulty AIR B changeover valve solenoid
- Damage to wiring insulation due to overheating or mechanical stress
- Moisture entering the valve connector
- AIR system relay malfunction
- Internal short circuit in the ECU (rare)
How to Fix
- Read error codes and record current data
- Visually inspect the wiring and connector of switch valve B
- Measure the resistance of the valve solenoid (normal 20–30 ohms; less than 5 ohms - short circuit)
- Check the wiring from the ECU to the valve for short to ground.
- Check AIR system relays and fuses
- Replace switching valve B if a short is confirmed.
- Check the condition of the ECU connector
- Reset code and perform cold start test