P1594 is set when original ISG type on ECU is not matched with new ISG type. If there is no DTC on sensors concerned ISG system and set only P1594, replace ECU.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Internal monitoring | 1. Poor connection 2. Faulty ECM/PCM | |
Enable Conditions |
•
IG "ON" & Engine "ON" | ||
Threshold Value |
•
ISG type recognition error | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
NO | ||
