SAAB WIS ONLINE

T8 / P0411 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)

  P0411 00


Secondary Air Injection System. Incorrect Airflow.

Fault symptom

Fault indicator lamp (for further information see WIS Fault diagnosis, general)

On-board diagnosis

Type of diagnosis:

Once per driving cycle.

Enable criteria:

Battery voltage must be between 11 - 16 V.
Atmospheric pressure below 725 kPa (105 PSI).
Coolant temperature higher than -6°C (21°F).
Engine load between 120 - 400 mg/c.
Engine speed between 700 - 2500 rpm.
Secondary air injection pump is active.
No DTC detected for oxygen sensors 1 and 2.
No DTC detected for the mass air flow sensor.

Fault criteria:

Closed loop insufficiently actuated or not at all.

Dependent:

None

System reaction to a fault:

None

OK report:

Diagnostics carried out without fault reported.

Fault handling:

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

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

Diagnosis regards:

Insufficient air flow to the exhaust system when secondary air injection pump is active.

Functions in the diagnostic tool related to the fault:

Activation:
Initiate SAI Diagnosis
SAI Relay
(See also description of readings/activations in diagnostic tool)