P0545 is set when the exhaust gas sensor (EGTS) T3 value is minimum or greater than 900℃ for 3 sec. This DTC is due to a signal circuit is short to ground or sensor is faulty.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Signal monitoring | 1. EGTS signal circuit short to ground 2. Faulty EGTS T3 | |
Enable Condition | Case 1 |
•
IG "ON" | |
Case 2 |
•
2,000~5000RPM
•
Fuel quantity 10~70
•
ECT is higher than 15℃
•
Items above for 15sec | ||
Threshold Value | Case 1 |
•
EGTS signal circuit is short to ground. | |
Case 2 |
•
EGTS signal is greater than 900℃. | ||
Fail Safe | Fuel Cut |
•
NO | |
EGR Off |
•
NO | ||
Fuel Limit |
•
NO | ||
Check Lamp |
•
NO | ||
