P0203 is set when no current is detected in injector power and control circuit at injector #3 operating condition. This code is due to open in injector circuit or open in injector component coil.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Injector circuit monitoring | 1. Injector #3 power circuit open 2. Injector #3 control circuit open 3. Faulty Injector #3 | |
Enable Conditions |
•
Ignition switch "ON" & Engine "ON" | ||
Threshold Value |
•
Injector circuit open | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
YES | ||
Check Lamp |
•
YES | ||
