P1815 is set when recognized ESP data based on ECM CUD-K terminal 19 state(grounded or opened) is not readable or writable at EEPROM. This code is due to ECM failure.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal monitoring | 1. Poor connection 2. VDC auto recognition terminal circuit error 3. Faulty ECM/PCM | |
Enable Conditions |
•
IG "ON" | ||
Threshold Value |
•
VDC recognition is different with CAN messege.
•
Circuit error | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
YES | ||
