Possible causes

– A/C system low or over charge with refrigerant
– Faulty A/C refrigerant pressure sensor
– Cooling fans in-operative
– A/C refrigerant pressure sensor circuit open or shorted
– A/C refrigerant pressure sensor circuit poor electrical connection

When is the code detected?

The P0533 code is detected when the signal circuit is too high.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– A/C Inoperative
– A/C Blows Warm

P0533 Description

The powertrain control module (PCM) monitors the high side refrigerant pressure via a A/C refrigerant pressure sensor. When the pressure is high the signal voltage is high. When the pressure is low the signal voltage is low. When pressure is high the PCM commands the cooling fans on. When pressure is too high or too low the PCM will not allow the A/C compressor clutch to engage.

P0533 Information for specific makes

P0533 CHEVROLET
P0533 DODGE
P0533 HONDA
P0533 KIA
P0533 MAZDA
P0533 MITSUBISHI
P0533 CHRYSLER
P0533 JEEP
P0533 ACURA
P0533 BUICK
P0533 CADILLAC
P0533 GMC
P0533 PONTIAC
P0533 SATURN
P0533 HYUNDAI
P0533 ISUZU
P0533 SUZUKI
P0533 FORD