2008 Lexus LS600h L – Check Engine Light With P0546
- Aug 15
- 1 min read
CUSTOMER CONCERN
The check-engine light is on with DTCs P0546 and P1081 stored.
CAUSE
Circuit testing confirmed an open Bank 1 Sensor 1 exhaust-temperature sensor. The exhaust flap valve moved freely and operated as designed.
CORRECTION
Remove and replace the failed Bank 1 Sensor 1 exhaust-temperature sensor.
