P0252 is set when the ECM detects high temperatur due to the fuel pressure regulator valve control circuit is short to battery. The ECM stop operating the powerstage when temperature of the powerstage is increased due to the control circuit is short to battery.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
FPRV circuit monitoring | 1. FPRV control circuit short to battery 2. Faulty FPRV | |
Enable Conditions |
•
IG "ON" | ||
Threshold Value |
•
Detect high temperature due to short to battery in control circuit | ||
Diagnostic Time |
•
0.23 sec | ||
Fail Safe | Fuel Cut |
•
YES | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
YES | ||
