U0614 code meaning
Lost Communication With Intake Air Temperature Sensor 2 Bank 2
Network system Generic code U06xx codes Check engine light
What U0614 means
This is the bank 2 counterpart of U0613: the downstream intake temperature sensor of the second bank, usually after that bank's charge air cooler or in its manifold half, delivers its value digitally and the controller has stopped receiving it. Typical carriers are TMAP-style sensors whose SENT frames hold pressure and temperature, protected by a CRC and status bits, as described for Infineon's KP276. No manufacturer documents U0614 publicly; even GM's twin-throttle tables, which use U0611 to U0613, leave it out. The code therefore rests on CARB 1968.2, which demands a separate fault code when a digital input stops communicating. P00A5 to P00A9 describe the analog circuit of the same sensor. The engine controller falls back to a modelled charge temperature for that bank.
U0614 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0614
- Check engine light
- Little effect on driving, occasionally less boost
Common causes of U0614
- Most likelyWiring fault to the bank 2 combined temperature/pressure sensor
- PossibleBank 2 combined sensor failed
- Less likelyCorroded or oily connector at the bank 2 sensor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Iat sensor 2 bank 2Sensor wiring
What each part of U0614 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 14 | The exact fault in that area. |
What to do next
- Note U0614 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0614
What does U0614 mean?
U0614 means "Lost Communication With Intake Air Temperature Sensor 2 Bank 2". This is the bank 2 counterpart of U0613: the downstream intake temperature sensor of the second bank, usually after that bank's charge air cooler or in its manifold half, delivers its value digitally and the controller has stopped receiving it. It is a generic code, so it means the same on every make.
Is it safe to drive with U0614?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will U0614 fail an emissions test?
Yes, it can. U0614 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is U0614 to fix?
Difficulty: medium. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will U0614 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.