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Fig. 224: Mute Signal Circuit Between Radio Receiver And Stereo Component Amplifier - Wiring INSPECTION PROCEDURE 1. INSPECT STEREO COMPONENT AMPLIFIER a. Disconnect the K15 amplifier connector. b. Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION NG: Go to step 2 Fig. 225: Identifying K15 Connector Terminals OK: REPLACE STEREO COMPONENT AMPLIFIER (see REMOVAL ) 2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) a. Disconnect the K4 receiver connector. b. Disconnect the K15 amplifier connector. c. Measure the resistance according to the value(s) in the table below. Tester Connection Switch Condition Specified Condition K15-1 (MUTE) - Body ground Ignition switch ACC, Audio system is playing --> Changing modes Above 3.5 V --> Below 1 V
2009 Toyota Tundra 2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra
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