Code No. P0406: EGR Valve Position Sensor High
DIAGNOSIS CONTENT
TROUBLE JUDGMENT
Check Condition
- Ignition switch: ON
- EGR valve position sensor signal voltage is above the limit.
FAIL SAFE FUNCTION
- EGR valve position sensor is recognized as specified
value.
PROBABLE CAUSE
- Failed EGR valve position sensor
- Failed electrical harness in EGR valve position sensor circuit