OBD-II code · Powertrain (generic)
P0546 Exhaust Gas Temperature Sensor Bank 1 Sensor 1 High
The exhaust gas temperature sensor signal at bank 1, sensor 1 is above the upper diagnostic threshold. Typically open circuit or short to power.
Is it safe to drive with P0546?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor open internally
- PossibleWiring open or disconnected
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Likely to fail
- Parts involved
- Exhaust Gas Temp Sensor, Sensor Wiring
Related codes
- P0545Exhaust Gas Temperature Sensor Bank 1 Sensor 1 Low
- P0543Intake Air Heater A Circuit Open
- P0544Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 1
- P0547Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 1
- P0548Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1
- P0549Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.