OBD-II code · Powertrain (generic)
P0097 Intake Air Temperature Sensor 2 Circuit Low Bank 1
IAT sensor 2 bank 1 signal voltage below expected range — short to ground. The intake air temperature sensor feeds the ECM's density calculation — a drifted reading miscalculates fuel mass and pushes mixture lean (cold reading) or rich (hot reading).
Is it safe to drive with P0097?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- Parts involved
- Iat Sensor 2, Sensor Wiring
Related codes
- P00A7Intake Air Temperature Sensor 2 Circuit Low Bank 2
- P00ACIntake Air Temperature Sensor 1 Circuit Low Bank 2
- P00EAIntake Air Temperature Sensor 3 Circuit Low Bank 1
- P00EFIntake Air Temperature Sensor 3 Circuit Low Bank 2
- P0094Fuel System Leak Detected - Small Leak
- P0095Intake Air Temperature Sensor 2 Circuit Bank 1
- P0096Intake Air Temperature Sensor 2 Circuit Range/Performance Bank 1
- P0098Intake Air Temperature Sensor 2 Circuit High Bank 1
- P0099Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Bank 1
- P009AIntake Air Temperature/Ambient Air Temperature Correlation
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.