Chrysler 300M 2002 Service Manual page 2645

DRIVEABILITY - NGC
Symptom:
P0519-IDLE SPEED PERFORMANCE
When Monitored and Set Condition:
P0519-IDLE SPEED PERFORMANCE
When Monitored: With the engine idling and the transmission in drive, if automatic.
There must not be a MAP sensor trouble code or a Throttle Position Sensor trouble code.
Set Condition: The engine idle is not within 200 rpm above or 100 rpm below the target
idle for 40 seconds. Two trip fault.
INTERMITTENT CONDITION
IAC MOTOR PASSAGES
VACUUM LEAKS
AIR INDUCTION SYSTEM
THROTTLE BODY AND THROTTLE LINKAGE
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Go To 6
No
2 Turn the ignition off.
Remove the IAC Motor.
Inspect the IAC Motor and passages way for any obstructions or damage to motor.
Were any problems found?
Yes → Repair as necessary.
→ Go To 3
No
3 Start the engine.
Inspect the vehicle for external vacuum leaks.
Inspect the engine for internal vacuum leaks.
Were any vacuum leaks found?
Yes → Repair the vacuum leak as necessary.
→ Go To 4
No
POSSIBLE CAUSES
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
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APPLICABILITY
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All
All