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ME9 / P0411 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Malfunction Indicator Lamp

  P0411 00


Secondary Air Injection System. Malfunction.

Fault symptom

Malfunction Indicator Lamp

On-board diagnosis

Type of diagnosis:

Once per driving cycle.

Enable criteria:

Preheating active.
Coolant temperature between 5°C and 114°C.
Intake air temperature between 5°C and 75°C.
Engine load 2 - 33 g/s.
Vehicle speed below 2.5 km/h.

Fault criteria:

Closed loop lambda control actuated too little or not at all during test.

Diagnostic help

Diagnosis regards:

Insufficient air flow to the exhaust system when secondary air injection pump is active.
Pump fault, clogged/leaking pipes and faulty valves.

Functions in the diagnostic tool related to the fault:

Activation:
Secondary Air Relay
SAI Diagnosis

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