P0478 is set when Exhaust pressure actuator motor circuit is short to battery more than 1 sec.and motor (+/-) side circuit is short
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Signal monitoring | 1. Exhaust Pressure Control Valve circuit | ||
Enable Conditions |
•
IG "ON" | |||
Threshold value |
•
Exhaust pressure actuator motor circuit is short to battery | |||
Diagnosis Time |
•
1 sec. | |||
Fail Safe | Fuel cut | NO |
•
- | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | OFF | |||
