Chrysler 2005 Crossfire SRT6 Service Manual page 2343

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(P0400) EGR SYSTEM PERFORMANCE (CONTINUED)
When Monitored and Set Condition
• When Monitored: A constant engine speed between 900 and 1700 RPM and no other EGR or MAP sensor
faults.
• Set Condition: The PCM commands the EGR valve to open. The MAP sensor value must drop by a minimum
of 54 mbar (1.6 in. Hg) when EGR is commanded open or a fault is set.
EGR SOLENOID CONTROL CIRCUIT OPEN
EGR SOLENOID CONTROL CIRCUIT SHORT TO GROUND
EGR SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE
FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN
EGR SOLENOID
EGR VALVE
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 - 419
POSSIBLE CAUSES