Chrysler 300M 2002 Service Manual page 2550

P0300-MULTIPLE CYLINDER MISFIRE —
TEST
7 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
Repair
8 NOTE: The conditions that set the DTC are not present at this time.
An intermittent problem may have been caused by moisture in the secondary
ignition.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS, OR FAN. DO NOT WEAR LOOSE CLOTHING.
With the DRBIII , select DTC's AND RELATED FUNCTIONS. Read and record the
FREEZE FRAME DATA. Select OBD II MONITORS. Read and record MIS-FIRE
SIMILAR CONDITIONS WINDOW DATA.
With these screens, attempt to duplicate the condition that has set the Misfire DTC.
While using FREEZE FRAME DATA, pay particular attention to the DTC setting
conditions, such as speed, temp, load, and map vacuum.
Does the mis-fire reoccur?
Yes → Restart diagnostics beginning with Test 2.
No
ACTION
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
→ Test Complete.
DRIVEABILITY - NGC
Continued
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APPLICABILITY
All
All