Chrysler 300M 2002 Service Manual page 2591

DRIVEABILITY - NGC
P0405 - EGR POSITION SENSOR LOW —
TEST
9 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
10 NOTE: The engine will run rough and possibly stall in the following test.
Feather the accelerator panel to keep the engine from stalling.
Start the engine.
With the DRBIII , enter Engine System Test and then EGR System Test. Push the
4=VARIABLE function.
Monitor the EGR voltage while slowly pushing the up arrow.
Is the voltage change smooth?
Yes → Go To 11
→ Replace the EGR Solenoid Assembly.
No
11 NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
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 engine running at normal operating temperature, monitor the DRBIII
parameters related to the DTC while wiggling the wire harness. Look for parameter
values to change and/or a DTC to set.
Review the DRBIII Freeze Frame information. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
Yes → Repair as necessary
→ Test Complete.
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.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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