What B0116 means
Fault on camera washer actuator N.
How the engine computer detects it
The cam phaser actuator adjusts intake/exhaust timing under load — a stuck or slow phaser kills mid-rpm torque and can throw correlation codes between cam and crank.
Written from public technical sources and not yet checked by a mechanic. How we write these pages
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- Washer actuator failed Most likely
How to diagnose B0116
- Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
- Inspect the parts involved: camera washer actuator n, actuator wiring.
- Work through the causes above from most to least likely, cheapest checks first.
- Clear the code and drive a full drive cycle to confirm the repair held.
Vehicles that report B0116 most
| Vehicle | Years | Reports | Share | Median miles |
|---|---|---|---|---|
| Toyota Sienna | 1996–2007 | 10 | 80k |
Counts of owner complaints to the NHTSA that mention B0116 (13 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.
Reading the code
- B
- Body
- 0
- Generic (SAE) code
- 116
- Specific fault
Questions drivers ask
Can I drive with code B0116?
Yes. This is a body or convenience fault and doesn't affect how the car drives.
Can I fix B0116 myself?
Often yes, with an OBD-II scanner and basic tools. Difficulty: medium. Start with the cheapest checks before replacing expensive parts.
Often reported together
Codes that owners mention in the same NHTSA complaints as B0116. They can point to a shared cause, so it's worth checking them together.
This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.