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6E–288 6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS DTC P0406 – EGR High Voltage
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 P0406 until the DTC P0406 test runs. Note the result. Does the Tech 2 indicates DTC P0406 failed this — Go to Step 3 Check the Procedure 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. Is the action complete? — Verify repair Is the action complete? 5 1. Disconnect the EGR harness connector. at the 5 volt reference wire (BLU/RED). Did the DVM indicate the specified value? 4–6 V Go to Step 8 Go to Step 6 6 1. Ignition “ON”. 5 volt reference for the EGR valve. Did the DVM indicate the specified value? 4–6 V Go to Step 7 Go to Step 16 7 Repair the open 5 volt reference circuit Is the action complete? — Verify repair — 8 1. Ignition “OFF” reference and Sensor Ground at EGR sensor NOTE: J-35616 Connector Test Adapter Kit may be Was the measured resistance in range? 5 to 5 K W Go to Step 9 Go to Step 15 9 1. Ignition “OFF”. Sensor Ground and Signal Wire at EGR sensor Is there an open circuit? — Go to Step 15 Go to Step 10 10 1. Ignition “OFF”. and F53. Is there a shorted wire? — Go to Step 14 Go to Step 11 |