B0116 code meaning
Camera Washer Actuator N
What B0116 means
B0116 covers actuator N. Like B0111 it also turns up on the 2004–2009 Toyota Sienna, where bulletin T-SB-0069-12 uses it for an open side-airbag squib circuit, not a washer. In the generic sense, cold is a typical burden for camera washers. Denso's patent US9180840B2 mixes air from a pump with fluid admitted by an electromagnetic valve and adapts to the weather: at or below a threshold such as 2 °C it lowers the pump voltage so that larger droplets form, which freeze less readily on the lens, and it lengthens spray and blow times. Kautex offers heated nozzles and heated hoses against the same problem. Frozen fluid can stall a pump or valve and make it draw abnormal current. Which camera N serves is not published.
B0116 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.2 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0116
- Camera wash fails mainly in frost and recovers after the car has warmed up
- Ice or salt film stays on the lens of the camera served by actuator N
Common causes of B0116
- Most likelyWasher fluid without enough antifreeze frozen in pump or valve N
- PossibleActuator N electrically open or shorted
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Camera washer actuator nWasher pumpActuator wiring
What each part of B0116 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 16 | The exact fault in that area. |
What to do next
- Note B0116 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 B0116
What does B0116 mean?
B0116 means "Camera Washer Actuator N". B0116 covers actuator N. It is a generic code, so it means the same on every make.
Is it safe to drive with B0116?
B0116 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0116 fail an emissions test?
B0116 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 B0116 to fix?
Difficulty: medium. A typical repair takes 0.2 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0116 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.