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LCD DISPLAY DI-77 C D E F G H I J L M A B DI Self-Diagnosis Does Not Perform EKS009CC 1. MULTIFUNCTION SWITCH CHECK Check multifunction switch power and ground circuit.Refer to DI-71, "Power Supply and Ground Circuit Check . >> GO TO 2. 2. DISPLAY UNIT CHECK Check display unit power and ground circuit. Refer to DI-70, "Power Supply and Ground Circuit Check for Dis- . >> GO TO 3. 3. SELF-DIAGNOSIS CHECK 1. Disconnect audio unit connector M53. 2. Perform self-diagnosis mode. Can self-diagnosis mode be activated? Yes >> GO TO 4. No >> AV communication line check. Refer to DI-75, "AV Communication Line Check" . 4. MULTIFUNCTION SWITCH CIRCUIT CHECK 1. Disconnect multifunction switch connector. 2. Check continuity between multifunction switch and audio unit. 3. Check continuity between multifunction switch and ground. OK or NG OK >> GO TO 5. NG >> Replace harness or connector. Terminals Continuity Multifunction switch Audio unit Connector Terminal (Wire color) Connector Terminal (Wire color) M49 11 (L) M53 44 (L) Yes 13 (P) 43 (P) Terminals Continuity Connector Terminal (Wire color) Terminal M49 11 (L) Ground No 13 (P) MKIB0132E |