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6E–251 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS DTC P0404 – EGR Open Stuck
Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 1. Ignition “ON”, engine “OFF”, review and record Tech 2 Failure Records Data. 2. Operate the vehicle within Failure Records conditions as noted. 3. Using a Tech 2, monitor “DTC” info for DTC P0404 until the DTC P0404 test runs. Note the result. Does the Tech 2 indicates DTC P0404 failed this — Go to Step 3 Refer to Diagnostic Aids 3 1. Disconnect the EGR valve harness connector. pin or terminals. Were there any damaged pins or terminals? — Go to Step 4 Go to Step 5 4 Repair the damaged pin or terminal. — Verify repair Is the action complete? 5 1. Remove EGR valve from Engine. carbon deposit on EGR shaft. Was excessive carbon deposit on EGR valve shaft? — Go to Step 6 Go to Step 7 6 1. Clean up EGR valve shaft and inside of EGR valve. leakage may occur. Was there any severe damage which affects function? — Go to Step 8 Verify repair Go to Step 7 7 1. Reconnect. 40%. Did EGR work properly? — — Go to Step 8 8 Replace the EGR valve. Does DTC P0404 still fail “DTC” test on the Tech 2? — Go to Step 9 Verify repair 9 Replace the PCM. IMPORTANT: The replacement PCM must be On-Vehicle Service in Powertrain Control Module and Sensors for And also refer to latest Service Bulletin. Check to see if the Latest software is released or not. Is the action complete? — Verify repair — |