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AV-188 < ECU DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] AV CONTROL UNIT 9 (R) Ground Illumination signal Input OFF Lighting switch is OFF. 0 V Lighting switch is ON. 12 V 15 (B) Ground Steering switch signal GND — Ignition switch ON — 0 V 16 (L) 15 (B) Steering switch signal B Input Ignition switch ON Keep pressing VOL DOWN 0 V Keep pressing VOL UP 0.7 V Keep pressing switch. 1.3 V Except for above. 3.3 V 19 (Y) Ground Battery power supply Input Ignition switch OFF — Battery voltage 20 (B) Ground GND — Ignition switch ON — 0 V 22 (B) 21 (W) Satellite radio sound signal Input Ignition switch ON When satellite radio mode 24 (G) 23 (R) Satellite radio sound signal Input Ignition switch ON When satellite radio mode 25 — Shield — — — — 26 — Shield — — — — 28 (W) Ground Request signal → CONT) Input Ignition switch ON When satellite radio mode 29 (B) Ground Communication signal → CONT) Input Ignition switch ON When satellite radio mode Terminal (Wire color) Description Condition Reference value (Approx.) + – Signal name Input/ Output SKIB3609E SKIB3609E SKIA9299J SKIA9300J |