DTC Detection Logic
WARNING: This page is about a different variant/trim than selected.
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DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition |
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P0401 |
00 |
EGR A FLOW INSUFFICIENT (EGR "A" flow insufficient detected) |
Diagnosis condition |
-- |
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Signal (terminal) |
EGR volume control valve |
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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. |
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Diagnosis delay time |
-- |
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