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NAVIGATION SYSTEM AV-67 C D E F G H I J L M A B AV Power Supply and Ground Circuit Inspection for Display Unit and NAVI Switch NKS002G3 1. CHECK FUSE Check the following fuses of the display unit and NAVI switch. OK or NG OK >> GO TO 2. NG >> If fuse is blown, be sure to eliminate the cause of malfunction before installing new fuse. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" 2. CHECK POWER SUPPLY CIRCUIT 1. Check voltage between display unit harness connector and 2. Check voltage between NAVI switch harness connector and OK or NG OK >> GO TO 3. NG >> Check the following. ● Harness for open or short between display unit and ● Harness for open or short between NAVI switch and fuse. Unit Terminals Power source Fuse No. Connector Terminal Display unit M35 21 Battery power 37 23 19 Ignition switch ACC or ON 6 NAVI switch M37 1 Unit Terminals OFF ACC ON (+) (–) Connector Terminal Display unit M35 21 Ground Battery Battery Battery 23 Battery Battery Battery 19 0 V Battery Battery Unit Terminals OFF ACC ON (+) (–) NAVI switch Connector Terminal Ground 0 V Battery Battery M37 1 SKIA8543E SKIA8544E |