P1815 is set when recognized ESP data based on ECM terminal 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 |
•
Voltage monitoring |
•
ESP/FTCS Auto recognition terminal circuit
•
ECM component failure | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold Value |
•
ESP learning error | |||
Diagnostic Time |
•
0.6 sec | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | NO | |||
