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Diagnostic Procedure NCEC0232 1 CHECK EXHAUST SYSTEM 1. Start engine. SEF099P OK or NG OK (With CONSULT-II) © GO TO 2. OK (Without CONSULT-II) © GO TO 3. NG © Repair or replace exhaust system. 2 CHECK POWER SUPPLY 1. Disconnect EGR volume control valve harness connector. DISCONNECT SEF556WA Voltage: Battery voltage OK or NG OK © GO TO 3. NG © Check the following. I Harness or connectors E90, F73 I Harness for open or short between EGR volume control valve and engine control DTC P0400 EGR FUNCTION (CLOSE) (IF SO EQUIPPED) QG16 I 18DE Diagnostic Procedure EC-249 |