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MANUAL TRANSMISSION - Troubleshooting <ACD> 22A-31 INSPECTION CHART FOR TROUBLE SYMPTOMS Trouble symptom Inspection procedure No. Reference page No communication possible between MUT-II and all systems. 1 22A-31 No communication possible between MUT-II and 4WD-ECU. 2 22A-32 ACD mode indicator lamp does not light up when the ignition switch is set to ”ON“ (engine is stopped). 3 22A-33 More than two ACD mode indicator lamps remain lit even after the engine is started 4 22A-34 The ACD does not operate (no diagnostic code). 5 22A-34 The AYC does not operate (no diagnostic code). 6 Refer to GROUP The rear tire sounds when turning at low speed corners (vehicle slows down) 7 GROUP 27B. Noise is produced from the torque transfer differential during turning. 8 27B. INSPECTION PROCEDURES FOR TROUBLE SYMPTOMS Inspection procedure 1 No communication possible between MUT-II and all systems. Probable cause The diagnosis connector power supply circuit, earth circuit, or MUT-II may be faulty. D Diagnostic connector fault D Harness or connector fault D MUT-II fault OK NG NG Check the harness between the fusible link No.1 and diagnosis connector. Check for open circuit or damage of the power line. NG→Repair OK Check the trouble symptoms. Measure at diagnosis connector C-22. Voltage between terminal 16 and body earth OK: System voltage NG Check the following connectors: <L.H. drive vehicles> C-22, C-213, C-211, C-132 <R.H. drive vehicles> C-22, C-213, C-211, C-35, C-132 NG→Repair Check the harness between the body earth and diagnosis connector. Check for open circuit and damage of the earth line. NG→Repair OK Replace the MUT-II. Measure at diagnosis connector C-22. Resistance between terminals 4 and 5 and body earth. OK: 2 Ω or less |