P0221-Idle Speed Performance: Notes

Fig 1: Throttle Body Circuit Schematic

Courtesy of CHRYSLER LLC

1. When Monitored  : With the engine running.
2. Set Condition  : Low limit: The Powertrain Control Module (PCM) required engine RPM must be reached within 25 seconds. The fault is set if the engine RPM is less than the PCM required RPM by 100 RPM or more after 25 seconds. High limit: The PCM required engine RPM must be reached within 25 seconds. The fault is set if the engine RPM is greater than the PCM required RPM by 200 RPM or more after 25 seconds.

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