Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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Circuit Testing
Dignostic Trouble Code P0404 checks for a malfunction in the circuitry and hardware of the Linear EGR valve. The ability of the
PCM to control the
EGR valve is checked with this test. When the PCM commands the EGR valve to a desired position and changes that position less than a calibratable amount, this test then checks the
EGR pintle position error. If the pintle position error, which is the difference between the desired pintle position and the actual pintle position, is too great then this DTC is set. Refer to Dignostic Tables / DTC P0404.
Testing and Inspection