Chrysler Sebring 2004 Service Manual page 2049

DRIVEABILITY - GAS
P0401 - EGR SYSTEM FAILURE (2.7L) —
TEST
2 NOTE: If the vehicle is running rough at idle (DRBIII not actuating) follow
the yes path to continue.
Turn the ignition on.
Turn all accessories off.
Start the engine.
Allow the engine to reach normal operating temperature.
With the DRB, enter Engine System Test, then EGR System Test.
Actuate the FLOW function in the EGR System Test.
Did the engine run rough or stall?
Yes → Go To 3
→ Go To 8
No
3 Turn the ignition off.
Disconnect the EGR Solenoid Assembly harness connector.
Start engine. Attempt to allow the engine to idle.
Does the engine run rough or stall?
Yes → Inspect the EGR tube assembly. If OK, replace the EGR valve.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the EGR Solenoid harness connector.
Measure the resistance of the (K35) EGR Solenoid Control circuit in the EGR
Solenoid harness connector to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the short to ground in the (K35) EGR Solenoid Control
→ Go To 5
No
5 Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the EGR Solenoid harness connector.
Measure the resistance of the (K35) EGR Solenoid Control circuit to (K4) Sensor
ground circuit at the EGR Solenoid connector.
Is the resistance below 5.0 ohms?
Yes → Repair the short between the (K4) Sensor ground circuit and the
→ Go To 6
No
6 Inspect the EGR Assembly for the following.
Gasket(s) for leaking
Damage and/or holes in the EGR tube(s)
Carbon build up on or near the EGR pintle and passage ways.
Obstruction in the EGR tubes
Were any problem found?
Yes → Repair or replace the EGR Assembly as necessary.
→ Go To 7
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
circuirt.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
(K35) EGR Solenoid Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
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APPLICABILITY
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