Fault Code 1413

Fault code 1413

Metering pump

Diagnostic conditions
- Ignition on
- Internal auxiliary heater control unit function test

Possible cause of fault
- Electrical fault in electric circuit (plug contact problem)
- Short circuit to ground
- Short circuit to B+
- Open circuit in wiring
- Auxiliary heater control unit faulty

Affected pins
Plug A for auxiliary heater control unit
- Pin 6 'output for metering pump'

Metering pump plug
- Pin 2 'input for metering pump'
- Pin 1 'terminal 31'

Diagnosis/troubleshooting

NOTE:
Visual inspection: During the next check, first ensure that the affected pins of the 14-pin plug connection on the wiring harness are neither damaged nor corroded. Remove any soiling or corrosion/oxidation. Replace damaged parts/wires.

DANGER: Danger of fire due to leaking fuel.