PSG16 / P0400 64

Read the instructions below then start the fault diagnostic procedure.

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

P0400 64

Fault symptom

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

Performance loss.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

Control deviation is more than 20% from requested EGR position for 3 seconds.

System reaction to a fault:

Limp Home, engine torque limitation.

Diagnostic help

Feedback signal should normally lie between 85-95% PWM.

Diagnostic help

Diagnosis regards:

Component function.

Functions in the diagnostic tool related to the fault:

Test value:

EGR Feedback Signal

Activate:

EGR Solenoid

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