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E39 / P0533 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: No cooling.

  P0533 00


A/C Pressure Sensor, Short to B+

Fault symptom

No cooling.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 10 - 18 V.
Engine running.

Fault criteria:

When voltage on the input exceeds 4.9 V.

System reaction to a fault:

No A/C function.

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
A/C Pressure

A/C Pressure Sensor
(See also description of readings/activations in diagnostic tool)