DTC | M.U.T.-III SE screen terms (Trouble diagnosis content) | DTC detection condition | ||
P0401 | 00 | EGR A FLOW INSUFFICIENT (EGR "A" flow insufficient detected) | Diagnosis condition | — |
Signal (terminal) | EGR volume control valve | |||
Threshold | When ECM detects that negative pressure variation in intake manifold is smaller than the variation corresponding to EGR valve opening in case of opening/closing EGR control valve in a condition fuel supply is cut. | |||
Diagnosis delay time | — |
Engine operating condition in fail-safe mode | ||
Fail safe mode | Vehicle behavior | |
Device fix mode |
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caution | Always drive vehicle at a safe speed. |