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SYSTEM — ENGINE CONTROL system Malfunction SYMPTOM Reference page Feature of symptom, Check point ROUGH IDLE/HUNTING IDLING VIBRA TION SLOW/NO RETURN T O IDLE OVERHEA T/HIGH ENGINE COOLANT TEMPERA TURE EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR DEAD BA TTER Y (UNDER CHARGE) Malfunction indicator lamp illuminates. Can be detected by CONSUL T -II? Fuel cut BLACK SMOKE WHITE SMOKE Warranty symptom code AG AH AJ AK AL AM AP HA ENGINE CONTROL EGR volume control valve circuit *a, *b *c 1 *8 Glow relay circuit *a 1 *9 *b *10 ECM relay (Self-shutoff) circuit *a 1 *b 1 1 *11 ECM, Connector circuit *a, *b 2 2 2 2 2 2 2 2 2 2 2 2 Air conditioner relay circuit *a *12 *b *13 Air conditioner switch circuit *a, *c *13 *b *14 1 - 5: The numbers refer to the order of inspection. TROUBLE DIAGNOSIS — GENERAL DESCRIPTION ZD30DDTi Symptom Matrix Chart (Cont’d) EC-65 |