OBD-II code · Network
U0612 Lost Communication With Intake Air Temperature Sensor 1 Bank 2
The vehicle bus reports loss of communication with smart IAT sensor 1 on bank 2. Charge-air density correction reverts to a substitute value.
Is it safe to drive with U0612?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBus wiring open or shorted
- PossibleModule without power or ground
- PossibleModule failed
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Iat Sensor 1 Bank 2, Vehicle Bus Wiring
Related codes
- U0611Lost Communication With Intake Air Temperature Sensor 1 Bank 1
- U0613Lost Communication With Intake Air Temperature Sensor 2 Bank 1
- U0614Lost Communication With Intake Air Temperature Sensor 2 Bank 2
- U060FLost Communication With Mass or Volume Air Flow Sensor A
- U0610Lost Communication With Mass or Volume Air Flow Sensor B
- U0615Lost Communication With Engine Coolant Bypass Valve A
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.