U0266 code meaning
Lost Communication With Image Processing Sensor B
What U0266 means
Image processing sensor B has a documented owner at FCA, which reads U0266-00 as lost communication with the left camera of its 360-degree surround view. The central vision processing module (CVPM) takes each camera on its own color-coded coaxial plug. On a 2022 Ram 1500 the driver mirror image stayed dark while every other camera worked, along with B23C6-92 and B23C6-1C; the guide plugs the tan driver lead into the brown passenger socket of the CVPM to separate camera from wiring, and the culprit was the door harness (S2208000115). On a 2019 Ram 1500 the left part of the top view dropped out now and then after a door repair; connector i6624C behind the door trim or XY451A at the kick panel had to be secured (S2108000266). Only the left image is missing, no MIL.
U0266 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0266
- Left side of the surround or top view black, other views normal
- Fault appears intermittently, often after door work
- Left camera performance code stored as well
Common causes of U0266
- Most likelyCoaxial camera lead in the driver door harness damaged or unplugged
- Most likelyDoor or kick panel connector not secured after door repair
- PossibleCamera plug loose at the central vision processing module
- Less likelyLeft mirror camera internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Image processing sensor bVehicle bus wiring
What each part of U0266 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 66 | The exact fault in that area. |
What to do next
- Note U0266 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 U0266
What does U0266 mean?
U0266 means "Lost Communication With Image Processing Sensor B". Image processing sensor B has a documented owner at FCA, which reads U0266-00 as lost communication with the left camera of its 360-degree surround view. It is a generic code, so it means the same on every make.
Is it safe to drive with U0266?
U0266 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0266 fail an emissions test?
U0266 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0266 to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. This is a job for a workshop.
Will U0266 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.