Code No. P0401: EGR Flow Sufficient

DIAGNOSIS CONTENT

Negative governor deviation below limit

TROUBLE JUDGMENT

Check Condition

EGR flow is being introduced.

Judgment Criterion

The EGR flow is below the lower limit.

FAIL SAFE FUNCTION

EGR control is prohibited.

PROBABLE CAUSE

Failed EGR control system

(Refer to Symptom Procedure - EGR Control Solenoid Valve System

.)