Chrysler 2005 Crossfire SRT6 Service Manual page 2345

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(P0400) EGR SYSTEM PERFORMANCE (CONTINUED)
5.
EGR SOLENOID
Note: Check the Engine Control Fuse 2 in the Relay Control Mod-
ule. If it is open, multiple DTCs will be set in the PCM. Determine
the cause of the open fuse before continuing using the wiring
diagrams/schematics as a guide.
Turn the ignition off.
Disconnect the EGR solenoid harness connector.
Note: Check connectors — Clean/repair as necessary.
Connect a 12-volt test lamp between the EGR Solenoid Control circuit
and the Fused Engine Control Relay Output circuit.
Turn the ignition on.
With the DRB III , actuate the EGR VAC TRANSDUCER.
Does the test light flash on and off?
Yes >> Replace the EGR Solenoid. (Refer to 25 - EMISSIONS
CONTROL/EXHAUST GAS RECIRCULATION/SOLENOID
- REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 2.
No >> Go To 6
6.
FUSED ENGINE CONTROL RELAY OUTPUT CIRCUIT OPEN
With the ignition on.
Measure the voltage of the Fused Engine Control Relay Output circuit
at the EGR Solenoid harness connector.
Is the voltage above 10 volts?
Yes >> Go To 7
No >> Repair the Engine Control Relay Output circuit for an
open.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
7.
EGR SOLENOID CONTROL CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect PCM C2 harness connector.
Note: Check connectors — Clean/repair as necessary.
Measure the resistance between ground and the EGR solenoid control
circuit.
Is resistance above 100 kohms?
Yes >> Go To 8
No >> Repair the EGR solenoid control circuit for a short to
ground.
Perform POWERTRAIN VERIFICATION TEST - VER 2.
ENGINE - ELECTRICAL DIAGNOSTICS 9 - 421