Front Occupant Classification Sensor Right Collision Detection
Table of contents
B1786 TOYOTA Possible Causes
- Faulty Front Seat RH (Front Occupant Classification Sensor (RH))
- Front Seat RH harness is open or shorted
- Front Seat RH circuit poor electrical connection
- Faulty Occupant Classification ECU
How do I fix code B1786 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B1786 TOYOTA code
The cost of diagnosing the B1786 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Air Bag Warning Light ON
B1786 TOYOTA Description
The Diagnostic Trouble Code (DTC) B1786 is output when the Occupant Classification ECU receives a collision detection signal sent by the Front Occupant Classification Sensor Right (RH) when an accident occurs. DTC B1786 is also output when the Front Seat Assembly RH is subjected to a strong impact, even if an actual accident does not occur. However, when the Occupant Classification ECU outputs a collision detection signal, even if the vehicle is not in a collision, DTC B1786 can be cleared by performing the zero point calibration and sensitivity check. Therefore, when DTC B1786 is output, first perform the zero point calibration and sensitivity check.