AUDIO AND VISUAL SYSTEM > TERMINALS OF ECU

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CHECK RADIO RECEIVER ASSEMBLY

I100979E01

  1. Disconnect the R1 receiver connector.

  2. Measure the resistance and voltage of the wire harness side connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (R1-7) - Body ground
    		BR - Body ground
    		Ground
    		Always
    		Below 1 Ω
    ACC (R1-3) - Body ground
    		GR - Body ground
    		ACC power supply
    		Ignition switch ACC
    		10 to 14 V
    B (R1-4) - Body ground
    		L-Y - Body ground
    		Battery power supply
    		Always
    		10 to 14 V
    ILL+ (R1-10) - Body ground
    		G - Body ground
    		Illumination signal
    		Lamp control switch TAIL
    		10 to 14 V
    If the results are not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the R1 receiver connector.

  4. Measure the voltage of the connector.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    RR+ (R2-1) - GND (R1-7)
    		R - BR
    		Sounds signal (rear right)
    		Audio system is operating
    		Waveform synchronized with sound is output
    RL+ (R2-2) - GND (R1-7)
    		B - BR
    		Sounds signal (rear left)
    		Audio system is operating
    		Waveform synchronized with sound is output
    RR- (R2-3) - GND (R1-7)
    		W - BR
    		Sounds signal (rear right)
    		Audio system is operating
    		Waveform synchronized with sound is output
    RL+ (R2-6) - GND (R1-7)
    		Y - BR
    		Sounds signal (rear left)
    		Audio system is operating
    		Waveform synchronized with sound is output
    FR+ (R1-1) - GND (R1-7)
    		LG - BR
    		Sounds signal (front right)
    		Audio system is operating
    		Waveform synchronized with sound is output
    FL+ (R1-2) - GND (R1-7)
    		P - BR
    		Sounds signal (front left)
    		Audio system is operating
    		Waveform synchronized with sound is output
    FR- (R1-5) - GND (R1-7)
    		L - BR
    		Sounds signal (front right)
    		Audio system is operating
    		Waveform synchronized with sound is output
    FL- (R1-6) - GND (R1-7)
    		V - BR
    		Sounds signal (front left)
    		Audio system is operating
    		Waveform synchronized with sound is output
    ANT (R1-8) - GND (R1-7)
    		B-W - BR
    		Power source of antenna
    		Radio switch ON and AM or FM
    		10 to 14 V
    If the result is not as specified, the receiver may have a malfunction.