the condenser fan does not come on either all fuses are good
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2010 Toyota Corolla Question: I have no compressor operation pressure shows full light on dash on code b1423
Computer is not turning on A/c because it is detecting a fault in the pressure sensor circuit. Could be the sensor has failed, wiring issue, mechanical problem in a/c system,or moisture buid up in dryer. Sensor senses sytem pressure too low or high it won't allow compressor to run.
seek help this can be several issues, you don't want to guess at this