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NAVIGATION SYSTEM AV-93 C D E F G H I J L M A B AV A/C is Inoperrative (The Display for A/C is Not Shown) AKS003XW 1. HARNESS CHECK 1. Turn ignition switch OFF. 2. Disconnect A/C auto amp. connector and AV and NAVI control unit connector. 3. Check continuity between A/C auto amp. and AV and NAVI control unit. 4. Check continuity between AV and NAVI control unit and ground. OK or NG OK >> GO TO 2. NG >> Repair harness. 2. A/C-AV, AC-CLK COMMUNICATION SIGNAL CHECK 1. Connect A/C auto amp. connector. 2. Turn ignition switch ON. 3. Check voltage between AV and NAVI control unit harness con- OK or NG OK >> GO TO 3. NG >> Replace A/C auto amp. 3. A/C-AV, AC-CLK COMMUNICATION SIGNAL CHECK 1. Connect AV and NAVI control unit connector. 2. Turn ignition switch ON. 3. Check the signal between AV and NAVI control unit harness OK or NG OK >> Replace A/C auto amp. NG >> Replace AV and NAVI control unit. Terminals Continuity AV and NAVI control unit (+) A/C auto amp. (–) Connector Terminal (Wire color) Connector Terminal (Wire color) B29 37 (L/W) M119 9 (L/W) YES 39 (L/R) 20 (L/R) Terminals Continuity AV and NAVI control unit (+) (–) Connector Terminal (Wire color) B29 37 (L/W) Ground NO 39 (L/R) SKIA3527E 37 (L/W), 39 (L/R) - Ground : Approx. 5V SKIA3528E 37(L/W), 39(L/R) - Ground : Refer to and Reference Value for AV . SKIA3529E |