garajizOBD-II code · manufacturer-specific
B1904
Air Bag Crash Sensor #2 Feed/Return Circuit Failure
- System
- B — Body electronics
- Severity
- High (4/5)
- Can I keep driving?
- Drive with caution
What does B1904 mean?
B1904 is defined as “Air Bag Crash Sensor #2 Feed/Return Circuit Failure”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Toyota: Pretensioner Squib No 2 Circuit Short
Related codes
- B1903Air Bag Crash Sensor #1 Ground Circuit Short To Battery
- B1905Air Bag Crash Sensor #2 Feed/Return Circuit Short To Battery
- B1902Air Bag Crash Sensor #1 Ground Circuit Failure
- B1906Air Bag Crash Sensor #2 Feed/Return Circuit Short To Ground
- B1901Air Bag Crash Sensor #1 Feed/Return Circuit Short To Ground
- B1907Air Bag Crash Sensor #2 Ground Circuit Failure
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This page is general information; an exact diagnosis needs measurements and a technician’s check.