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AV-240 < ECU DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] AV CONTROL UNIT 69 (B) Ground Communication signal →CONT) Input Ignition switch ON — 70 (G) Ground Communication signal →CD) Input Ignition switch ON — 72 (R) Ground Request signal →CONT) Output Ignition switch ON — 73 (B) — GPS signal Input Ignition switch ACC Not connected to GPS an- 5V 74 (B) — Shield — — — — 75 (B) Ground Antenna amp. supply Output Ignition switch ACC — Battery voltage 76 (B) — Main antenna Input — — — 78 (B) Ground Satellite antenna signal Input Ignition switch ACC Not connected to satellite 5V Terminal (Wire color) Description Condition Reference value (Approx.) + – Signal name Input/ Output Ignition switch Operation SKIA9300J SKIA9301J SKIA9299J |