POWER MIRROR CONTROL SYSTEM > TERMINALS OF ECU

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CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH

E106666E27

  1. Disconnect the O3, O4 and i1 ECU connectors.

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (O3-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (O3-4) - GND (O3-1)
    		L-G - W-B
    		Battery (ECU power source)
    		Always
    		10 to 14 V
    SIG (O3-3) - GND (O3-1)
    		Y - W-B
    		Ignition power supply
    		Engine switch off
    		Below 1 V
    SIG (O3-3) - GND (O3-1)
    		Y - W-B
    		Ignition power supply
    		Engine switch on (IG)
    		10 to 14 V
    BDR (O3-6) - GND (O3-1)
    		L - W-B
    		Battery (ECU power source)
    		Always
    		10 to 14 V
    - (i1-12) - + (i1-4)
    		B-R - BR-W
    		Mirror heater output and ground
    		25°C (75°F)
    		3.6 to 4.8 Ω
    *SEL1 (O4-11) - SELE (O4-12)
    		P - P
    		Terminal for identification of driver side
    		Always
    		Below 1 Ω

    HINT:
    *: LHD

    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the O3, O4 and i1 ECU connectors.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    MR (i1-3) - GND (O3-1)
    		G - W-B
    		Mirror retract motor output (retracting)
    		Mirror retract switch ON (Outer rear view mirror LH is retracting)
    		10 to 14 V
    MF (i1-11) - GND (O3-1)
    		L - W-B
    		Mirror retract motor output (returning)
    		Mirror retract switch OFF (Outer rear view mirror LH is returning)
    		10 to 14 V
    M+ (i1-10) - GND (O3-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch OFF
    		Below 1 V
    M+ (i1-10) - GND (O3-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch UP or LEFT
    		Below 1 V
    M+ (i1-10) - GND (O3-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch DOWN or RIGHT
    		10 to 14 V
    MH (i1-9) - GND (O3-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch OFF
    		Below 1 V
    MH (i1-9) - GND (O3-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch RIGHT
    		Below 1 V
    MH (i1-9) - GND (O3-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch LEFT
    		10 to 14 V
    MV (i1-1) - GND (O3-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch OFF
    		Below 1 V
    MV (i1-1) - GND (O3-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch DOWN
    		Below 1 V
    MV (i1-1) - GND (O3-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch LEFT, Mirror control switch UP
    		10 to 14 V
    + (i1-4) - GND (O3-1)
    		BR-W - W-B
    		Mirror heater output
    		Rear defogger switch ON
    		10 to 14 V
    + (i1-4) - GND (O3-1)
    		BR-W - W-B
    		Mirror heater output
    		Rear defogger switch OFF
    		Below 1 V
    VSSL (i1-6) - E1 (i1-14)
    		V - GR
    		Vertical direction position signal
    		Mirror master switch RIGHT or LEFT,
    Mirror control switch UP or DOWN
    		Voltage fluctuates between 0 and 5 V
    HSSL (i1-13) - E1 (i1-14)
    		LG - GR
    		Horizontal direction position signal
    		Mirror master switch RIGHT or LEFT,
    Mirror control switch RIGHT or LEFT
    		Voltage fluctuates between 0 and 5 V
    VC (i1-5) - E1 (i1-14)
    		SB - GR
    		Power source for mirror position sensor
    		Engine switch off during sleep mode
    		Below 1 V
    VC (i1-5) - E1 (i1-14)
    		SB - GR
    		Power source for mirror position sensor
    		Engine switch on (IG)
    		3.5 to 5.5 V
    ECI+ (O3-18) - ECI- (O3-19)
    		BR - O
    		EC mirror signal
    		Electrochromic mirror system is operating
    		1.05 to 1.35 V
    ECI+ (O3-18) - ECI- (O3-19)
    		BR - O
    		EC mirror signal
    		Electrochromic mirror system is not operating
    		Below 1 V
    EC+ (i1-7) - EC- (i1-15)
    		BR - B-L
    		EC mirror signal
    		Electrochromic mirror system is operating
    		1.05 to 1.35 V
    EC+ (i1-7) - EC- (i1-15)
    		BR - B-L
    		EC mirror signal
    		Electrochromic mirror system is not operating
    		Below 1 V
    *SEL1 (O4-11) - GND (O3-1)
    		P - W-B
    		Terminal for identification of driver side
    		Always
    		Below 1 V

    HINT:
    *: LHD

    If the result is not as specified, the ECU may have a malfunction.


CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH

E106666E29

  1. Disconnect the N3, N4 and j1 ECU connectors.

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

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    GND (N4-1) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    CPUB (N4-4) - GND (N4-1)
    		LG - W-B
    		Battery (ECU power source)
    		Always
    		10 to 14 V
    SIG (N4-3 - GND (N4-1)
    		L - W-B
    		Ignition power supply
    		Engine switch off
    		Below 1 V
    SIG (N4-3) - GND (N4-1)
    		L - W-B
    		Ignition power supply
    		Engine switch on (IG)
    		10 to 14 V
    BDR (N4-6) - GND (N4-1)
    		L - W-B
    		Battery (ECU power source)
    		Always
    		10 to 14 V
    - (j1-12) - + (j1-4)
    		B-R - BR-W
    		Mirror heater output and ground
    		25°C (75°F)
    		3.6 to 4.8 Ω
    *SEL1 (N3-11) - SELE (N3-12)
    		P - P
    		Terminal for identification of driver side
    		Always
    		Below 1 Ω

    HINT:
    *: RHD

    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the N3, N4 and j1 ECU connectors.

  4. Measure the voltage of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    MR (j1-3) - GND (N4-1)
    		G - W-B
    		Mirror retract motor output (retracting)
    		Mirror retract switch ON (Outer rear view mirror RH is retracting)
    		10 to 14 V
    MF (j1-11) - GND (N4-1)
    		L - W-B
    		Mirror retract motor output (returning)
    		Mirror retract switch OFF (Outer rear view mirror RH is returning)
    		10 to 14 V
    M+ (j1-10) - GND (N4-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch OFF
    		Below 1 V
    M+ (j1-10) - GND (N4-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch UP or LEFT
    		Below 1 V
    M+ (j1-10) - GND (N4-1)
    		B - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch DOWN or RIGHT
    		10 to 14 V
    MH (j1-9) - GND (N4-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch OFF
    		Below 1 V
    MH (j1-9) - GND (N4-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch RIGHT
    		Below 1 V
    MH (j1-9) - GND (N4-1)
    		R - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch LEFT
    		10 to 14 V
    MV (j1-1) - GND (N4-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch OFF
    		Below 1 V
    MV (j1-1) - GND (N4-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch DOWN
    		Below 1 V
    MV (j1-1) - GND (N4-1)
    		W - W-B
    		Mirror motor output
    		Mirror master switch RIGHT, Mirror control switch UP
    		10 to 14 V
    + (j1-4) - GND (N4-1)
    		BR-W - W-B
    		Mirror heater output
    		Rear defogger switch ON
    		10 to 14 V
    + (j1-4) - GND (N4-1)
    		BR-W - W-B
    		Mirror heater output
    		Rear defogger switch OFF
    		Below 1 V
    VSSR (j1-6) - E1 (j1-14)
    		V - GR
    		Vertical direction position signal
    		Mirror master switch RIGHT or LEFT,
    Mirror control switch UP or DOWN
    		Voltage fluctuates between 0 and 5 V
    HSSR (j1-13) - E1 (j1-14)
    		LG - GR
    		Horizontal direction position signal
    		Mirror master switch RIGHT or LEFT,
    Mirror control switch RIGHT or LEFT
    		Voltage fluctuates between 0 and 5 V
    VC (j1-5) - E1 (j1-14)
    		SB - GR
    		Power source for mirror position sensor
    		Engine switch off during sleep mode
    		Below 1 V
    VC (j1-5) - E1 (j1-14)
    		SB - GR
    		Power source for mirror position sensor
    		Engine switch on (IG)
    		3.5 to 5.5 V
    ECI+ (N4-18) - ECI- (N4-19)
    		BR - O
    		EC mirror signal
    		Electrochromic mirror system is operating
    		1.05 to 1.35 V
    ECI+ (N4-18) - ECI- (N4-19)
    		BR - O
    		EC mirror signal
    		Electrochromic mirror system is not operating
    		Below 1 V
    EC+ (j1-7) - EC- (j1-15)
    		BR - B-L
    		EC mirror signal
    		Electrochromic mirror system is operating
    		1.05 to 1.35 V
    EC+ (j1-7) - EC- (j1-15)
    		BR - B-L
    		EC mirror signal
    		Electrochromic mirror system is not operating
    		Below 1 V
    *SEL1 (N3-11) - GND (N4-1)
    		P - W-B
    		Terminal for identification of driver side
    		Always
    		Below 1 V

    HINT:
    *: RHD

    1. If the result is not as specified, the ECU may have a malfunction.


INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

B107921E07

  1. Disconnect the S5 or R9 master switch connector.

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

    LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E (S5-2) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    BDR1 (S5-10) - E (S5-2)
    		Y - W-B
    		Power window power source
    		Always
    		10 to 14 V
    CPUB (S5-9) - E (S5-2)
    		G - W-B
    		Power source for CPU and relevant device
    		Always
    		10 to 14 V
    SIG (S5-20) - E (S5-2)
    		V - W-B
    		Power source for CPU and relevant device
    		Engine switch off
    		Below 1 V
    SIG (S5-20) - E (S5-2)
    		V - W-B
    		Power source for CPU and relevant device
    		Engine switch on (IG)
    		10 to 14 V

    RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    E (R9-2) - Body ground
    		W-B - Body ground
    		Ground
    		Always
    		Below 1 Ω
    BDR1 (R9-10) - E (R9-2)
    		Y - W-B
    		Power window power source
    		Always
    		10 to 14 V
    CPUB (R9-9) - E (R9-2)
    		G - W-B
    		Power source for CPU and relevant device
    		Always
    		10 to 14 V
    SIG (R9-20) - E (R9-2)
    		V - W-B
    		Power source for CPU and relevant device
    		Engine switch off
    		Below 1 V
    SIG (R9-20) - E (R9-2)
    		V - W-B
    		Power source for CPU and relevant device
    		Engine switch on (IG)
    		10 to 14 V
    If the result is not as specified, there may be a malfunction on the wire harness side.

  3. Reconnect the S5 or R9 master switch connector.

  4. Measure the voltage of the connector.

    LHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    MM (S5-3) - E (S5-2)
    		SB - W-B
    		SET switch signal
    		SET switch OFF
    		10 to 14 V
    MM (S5-3) - E (S5-2)
    		SB - W-B
    		SET switch signal
    		SET switch ON
    		Below 1 V
    M1 (S5-13) - E (S5-2)
    		L - W-B
    		M1 switch signal
    		M1 switch OFF
    		10 to 14 V
    M1 (S5-13) - E (S5-2)
    		L - W-B
    		M1 switch signal
    		M1 switch ON
    		Below 1 V
    M2 (S5-17) - E (S5-2)
    		V - W-B
    		M2 switch signal
    		M2 switch OFF
    		10 to 14 V
    M2 (S5-17) - E (S5-2)
    		V - W-B
    		M2 switch signal
    		M2 switch ON
    		Below 1 V
    M3 (S5-18) - E (S5-2)
    		R - W-B
    		M3 switch signal
    		M3 switch OFF
    		10 to 14 V
    M3 (S5-18) - E (S5-2)
    		R - W-B
    		M3 switch signal
    		M3 switch ON
    		Below 1 V

    RHD 
    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    MM (R9-3) - E (R9-2)
    		Y - W-B
    		SET switch signal
    		SET switch OFF
    		10 to 14 V
    MM (R9-3) - E (R9-2)
    		Y - W-B
    		SET switch signal
    		SET switch ON
    		Below 1 V
    M1 (R9-13) - E (R9-2)
    		O - W-B
    		M1 switch signal
    		M1 switch OFF
    		10 to 14 V
    M1 (R9-13) - E (R9-2)
    		O - W-B
    		M1 switch signal
    		M1 switch ON
    		Below 1 V
    M2 (R9-17) - E (R9-2)
    		LG - W-B
    		M2 switch signal
    		M2 switch OFF
    		10 to 14 V
    M2 (R9-17) - E (R9-2)
    		LG - W-B
    		M2 switch signal
    		M2 switch ON
    		Below 1 V
    M3 (R9-18) - E (R9-2)
    		SB - W-B
    		M3 switch signal
    		M3 switch OFF
    		10 to 14 V
    M3 (R9-18) - E (R9-2)
    		SB - W-B
    		M3 switch signal
    		M3 switch ON
    		Below 1 V
    If the result is not as specified, the master switch may have a malfunction.