OBD-II code · manufacturer-specific
B1818
Wiper Rear Motor Up Relay Coil Circuit Failure
- System
- B — Body electronics
- Severity
- Minor (2/5)
- Can I keep driving?
- Usually safe to drive
What does B1818 mean?
B1818 is defined as “Wiper Rear Motor Up Relay Coil Circuit Failure”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Toyota: Passenger Airbag 2nd Stage Squib Circuit Short to Battery
Related codes
- B1817Wiper Rear Motor Down Relay Coil Circuit Short To Ground
- B1819Wiper Rear Motor Up Relay Coil Circuit Open
- B1816Wiper Rear Motor Down Relay Coil Circuit Short To Battery
- B1820Wiper Rear Motor Up Relay Coil Circuit Short To Battery
- B1815Wiper Rear Motor Down Relay Coil Circuit Open
- B1821Wiper Rear Motor Up Relay Coil Circuit Short To Ground
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.