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EDC16 / P0403 07

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp on.

  P0403 07


EGR Valve Feedback Circuit. Too High.

Fault symptom

CHECK ENGINE lamp on.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

The voltage at the control module input exceeds 4.75 V for more than 0.6 seconds.

System reaction to a fault:

EGR turned off in case of fault.

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:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
EGR Actuator
EGR Actuator Position
EGR Actuator PWM
Activation:
EGR Actuator
(See also description of readings/activations in diagnostic tool)