RDCM / C0407 0B

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

C0407 0B

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Pump motor activated.

Control module temperature exceeds 0°C.

Fault criteria:

Current intensity exceeds 9.0A for more than 2 s, 10 times in succession.

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)