E39 / P0481 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE Possible AC malfunction.

P0481 00

Fault symptom

CHECK ENGINE

Possible AC malfunction.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Engine speed more than 400 rpm.

Output active.

Fault criteria:

Open circuit or short circuit on the control module output

System reaction to a fault:

MIL SVS or Message Requested

Fault handling:

Type III

(See section Fault handling III, "Other emission-related components and functions" for more information.)

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

Fan Output 2

Activation:

Fan Output 2

(See also description of readings/activations in diagnostic tool)