P0546 is set when the Exhaust gas temperature sensor(EGTS) - VST signal is detected over maximum set temperature(890℃),- In case that exhaust gas temperature on the front side of VGT is abnormally increased -, for more than 1sec. Therefore, check component or vehicle is driven in severe driving condition.
*. In case that real exhaust gas temperature reaches up to 900℃, engine and exhaust line(Turbo charger), CPF can be damaged.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
Abnormal over-load (driving) condition
•
Exhaust gas temp. sensor(T3-VGT) wiring
•
Exhaust gas temp. sensor(T3-VGT) component | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold Value |
•
Exhaust gas temp. exceeds 900℃(EGTS-VGT) | |||
Diagnostic Time |
•
1.0 sec. | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | OFF | |||
