U067F code meaning
Lost Communication With Barometric Pressure Sensor A
Network system Generic code U06xx codes Check engine light
What U067F means
Barometric pressure sensor A is normally the ambient sensor that corrects fueling, boost targets and many diagnostics for altitude; CARB requires barometric pressure, measured or estimated, in the OBD data stream. U067F covers a digital version of that sensor whose messages stop arriving. GM's dual-throttle program 23OBDG07 does read a digital ambient sensor, but files its faults under P-codes: a CRC error or a short reported in message A sets P2228 or P2229, and defect or queue-full flags set P2227, each after 2 s with MIL in one trip. Ford's 2024 gasoline and 2023 diesel summaries keep sensor A analog (P2228). No published table therefore assigns U067F. Because ambient pressure may also be estimated, as CARB allows, drivability rarely suffers.
U067F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U067F
- Check engine light
- Slightly off fueling or boost at altitude
- Other diagnostics may be suspended
Common causes of U067F
- Most likelyData, supply or ground wire to the barometric sensor interrupted
- PossibleConnector loose or corroded
- PossibleBarometric sensor electronics failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Baro sensor aVehicle bus wiring
What each part of U067F means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 7F | The exact fault in that area. |
What to do next
- Note U067F 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 U067F
What does U067F mean?
U067F means "Lost Communication With Barometric Pressure Sensor A". Barometric pressure sensor A is normally the ambient sensor that corrects fueling, boost targets and many diagnostics for altitude; CARB requires barometric pressure, measured or estimated, in the OBD data stream. It is a generic code, so it means the same on every make.
Is it safe to drive with U067F?
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 U067F fail an emissions test?
Yes, it can. U067F 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 U067F to fix?
Difficulty: easy. 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 U067F clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.