B1610 is Toyota's later number for a failed front airbag sensor on the right side of the vehicle, printed as B1610/13. The center airbag sensor assembly uses that sensor's frontal deceleration signal to decide whether to deploy, so a fault there takes the front sensing offline on one side.
The front airbag sensor RH holds a frontal deceleration sensor and a small diagnostic circuit. It is bolted to the front of the vehicle, ahead of the passenger compartment, where it feels a frontal impact early. Its signal goes back to the center airbag sensor assembly, which is Toyota's term for the airbag control module, and the module makes the deployment call from it.
Toyota sets B1610/13 when a malfunction is detected in that right side sensor. What stands out on this code is how short the trouble list is. Toyota names only two suspects, the front airbag sensor RH and the center airbag sensor assembly. No harness sections are listed, which is a change from the older charts and makes the diagnosis quick.
The left side twin is B1615/14. Seeing both at once usually points back at the module or the power feed rather than two sensors failing on the same day.
Hardware. Toyota treats front airbag sensors as replacement items rather than repairable ones, and the code names the sensor first. Once a front sensor has absorbed a crash it is done, even when it looks fine bolted to the rail.
This code turns up regularly on vehicles that have already been rebuilt once. If the shop reused the original front sensors after a front end hit, B1610 or its left side twin often follows within a few thousand miles.
No. B1610 is a live report about a part, and the module logs it again on the next key cycle until the sensor is replaced. Clearing codes on a car in this state only hides the light for a moment.
What we do handle is the other half of a crash repair. Once the sensors, airbags, and belts are back in, our airbag module reset clears the locked crash data from your original module so it can go back in the same vehicle. Genuine OEM front impact sensors are searchable by vehicle if you need one.
B1610/13 is Toyota and Lexus. On Toyota's earlier charts the same right front sensor fault was written B1156/B1157/15, so the year of the vehicle decides which number you get for the identical failure. Subaru also uses B1610 in its own airbag chart for a front sub sensor fault, close in spirit and not the same part, which is one more reason to match the code to the make before ordering.
Find the sensor first. On most Toyota trucks and cars it sits on or near the radiator support or the front frame section, with a two wire connector. Check the connector and pins, look for crash damage or a bent bracket, and compare it against the left side unit at B1615/14.
If the vehicle has an accident in its history, treat the sensor as a replacement item and get the module read for stored crash data at the same time. Related codes are B1156 for the older Toyota number covering this sensor, B1155 for the left curtain shield sensor, and B1650 for the occupant classification system.
Related codes: B1156, B1155, B1650
Keep reading:
Code scope: Toyota, Lexus. The same number can mean something different on another manufacturer, so match the code to your make before you act on it.
A reset clears stored crash data. A replacement part fixes a hardware fault. We have read these codes since the nineties and will tell you which one you are looking at.
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