OBD-II code · Powertrain (generic)
P00D9 Ambient Air Temperature Sensor Circuit B
Generic electrical fault on ambient air temperature sensor B (second sensor for redundancy or second measurement location).
Is it safe to drive with P00D9?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Ambient Air Temp Sensor B, Sensor Wiring
Related codes
- P0070Ambient Air Temperature Sensor Circuit A
- P00D6HO2S Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2
- P00D7Turbocharger/Supercharger Bypass Valve A Temperature Too High
- P00D8Turbocharger/Supercharger Bypass Valve B Temperature Too High
- P00DAAmbient Air Temperature Sensor Circuit B Range/Performance
- P00DBAmbient Air Temperature Sensor Circuit B Low
- P00DCAmbient Air Temperature Sensor Circuit B High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.