B0247 code meaning
Passenger Window Switch Circuit
What B0247 means
B0247 is listed in none of the publicly available J2012 sources and no carmaker publishes it; passenger window circuit faults have the code B0501. The passenger switch is the simpler partner of the driver's master block: it moves only its own window, and the master can override it or lock it out. In Honda's US7145299B2 the passenger door unit keeps its own up and down buttons wired across its drive transistors, so they still work while the master line is idle; should the master command up while the local down button is pressed, a relay lifts one motor terminal off ground. A circuit code therefore points to the passenger switch, its plug in the door or the line to the master. FMVSS 118 restricts when such a window may move without the ignition key.
B0247 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.5 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0247
- Passenger window works from the driver's switch but not from its own
- Passenger switch moves the window only in one direction
Common causes of B0247
- Most likelyPassenger window switch worn or contaminated
- PossibleSignal line between passenger door and master switch broken at the door hinge
- Less likelyWindow lock button on the master stuck or its circuit faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Window switchDoor wiring harness
What each part of B0247 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). |
| 47 | The exact fault in that area. |
What to do next
- Note B0247 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 B0247
What does B0247 mean?
B0247 means "Passenger Window Switch Circuit". B0247 is listed in none of the publicly available J2012 sources and no carmaker publishes it; passenger window circuit faults have the code B0501. It is a generic code, so it means the same on every make.
Is it safe to drive with B0247?
B0247 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0247 fail an emissions test?
B0247 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 B0247 to fix?
Difficulty: easy. A typical repair takes 0.5 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0247 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.