The cost of diagnosing the B1780 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.
|What are Code B1780 Possible Symptoms?
Air Bag Warning Light ON
|Code B1780 Description
The Front Occupant Classification Sensor Left (LH) circuit consists of the Occupant Detection ECU and the Front Occupant Classification Sensor Left. The Diagnostic Trouble Code (DTC) B1780 is recorded when a malfunction is detected in the Front Occupant Classification Sensor Left circuit.
B1780 Code - Front Occupant Classification Sensor Left Circuit Malfunction
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed,
it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
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