OBD-II code · Powertrain (generic)
P0544 Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 1
A general circuit fault is detected on the EGT sensor at bank 1 sensor 1 (typically just downstream of the turbo or before the catalyst). The ECU loses thermal protection feedback for the catalyst and DPF.
Is it safe to drive with P0544?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in sensor or wiring
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–1.8 h
- Emissions test
- Likely to fail
- Parts involved
- Egt Sensor B1s1
Related codes
- P0547Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 1
- P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3
- P2466Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 3
- P246EExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4
- P2480Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 3
- P2EA1Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 6
- P0541Intake Air Heater A Circuit Low
- P0542Intake Air Heater A Circuit High
- P0543Intake Air Heater A Circuit Open
- P0545Exhaust Gas Temperature Sensor Bank 1 Sensor 1 Low
- P0546Exhaust Gas Temperature Sensor Bank 1 Sensor 1 High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.