Start by checking 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.
The cost to diagnose the B1472 Toyota code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The high voltage is output from the A/C Inverter Assembly to the electric inverter compressor for driving the motor. Compressor control is stopped and the Diagnostic Trouble Code (DTC) is output if there is an open or short to ground in the output circuit. The output DTC is memorized as previous trouble. Compressor control remains stopped unless the past and current DTCs are cleared. The OBDII code set when an open or short in A/C inverter high voltage output system.
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