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 pins.
The cost to diagnose the B2780 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
This Diagnostic Trouble Code (DTC) is stored if the Transponder Key ECU Assembly does not detect that the Unlock Warning Switch Assembly is on even when the ignition switch is ON. Under normal conditions, the Unlock Warning Switch is ON when the ignition switch is ON.
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