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RDCM / C0407 64

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

  C0407 64


Hydraulic Pump Motor, Low Oil Pressure

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.
Pump cycle completed.

Fault criteria:

The pump flow is lower than the limit value which is temperature-dependent.

System reaction to a fault:

None

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

Functions in the diagnostic tool related to the fault:

Test value:
Pump Motor Amps
Activation:
Pump Motor
(See also description of readings/activations in diagnostic tool)