Front Occupant Classification Sensor Left Circuit Malfunction
Table of contents
B1780 LEXUS Possible Causes
- Faulty Front Seat RH (Occupant Classification Sensor Left (LH))
- Front Seat RH harness is open or shorted
- Front Seat RH circuit poor electrical connection
- Faulty Occupant Classification ECU
How do I fix code B1780 LEXUS?
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 B1780 LEXUS code
The cost of diagnosing the B1780 LEXUS 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
B1780 LEXUS Description
The Front Occupant Classification Sensor Left (LH) circuit consists of the Occupant Classification ECU and the Front Occupant Classification Sensor LH. The Diagnostic Trouble Code (DTC) B1780 is recorded when a malfunction is detected in the Front Occupant Classification Sensor LH circuit.