Chrysler 2005 Crossfire SRT6 Service Manual page 2237

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(P0221) IDLE SPEED PERFORMANCE (CONTINUED)
When Monitored and Set Condition
• When Monitored: With the engine running.
• 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.
AIR INTAKE SYSTEM
VACUUM LEAKS
THROTTLE BODY OPERATION
POWERTRAIN CONTROL MODULE
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Always perform diagnostics with a fully charged battery.
Note: Check connectors — Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Note: Check for applicable TSBs related to the problem.
Turn the ignition on.
With the DRB III , read PCM DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Perform this procedure prior to symptom diagnosis.
Continue
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ENGINE - ELECTRICAL DIAGNOSTICS 9 - 313
POSSIBLE CAUSES