P0400-EGR System Performance: Notes

Fig 1: Engine Control Fuse 2 Circuit Schematic

Courtesy of CHRYSLER LLC

1. When Monitored  : A constant engine speed between 900 and 1700 RPM and no other EGR or MAP sensor faults.
2. Set Condition  : The PCM commands the EGR valve to open. The MAP sensor value must drop by a minimum of 54 mbar (1.6 in. Hg) when EGR is commanded open or a fault is set.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .