Electronic Power Steering System Terminals Of Ecu

Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Power Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. CHECK POWER STEERING ECU

Electronic Power Steering System -- Terminals Of Ecu



CHECK POWER STEERING ECU

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Power Steering.Steering Gear.Electronic Power Steering System Terminals Of Ecu

HINT:
Measurements cannot be performed on the power steering motor connector side of the power steering ECU.

Symbols
Wiring Color
Terminal Description
U
W
U phase motor output
V
B
V phase motor output
W
W-R
W phase motor output

  1. Measure the voltage and resistance of the connectors.

    Symbols (Terminal No.)
    		Wiring Color
    		Terminal Description
    		Condition
    		Specified Condition
    PIG (A2-1) - PGND (A2-2)
    		W-B - W-B*1
    L - W-B*2
    		Power source
    		Always
    		10 to 14 V
    IG (E21-5) - PGND (A2-2)
    		L - W-B
    		IG power source
    		Ignition switch on (IG)
    		10 to 14 V
    TRQ1 (h2-6) - TRQG (h2-1)
    		G - B
    		Torque sensor signal
    		Ignition switch on (IG)
    Steering wheel not turned (without load)
    		2.3 to 2.7 V
    Ignition switch on (IG)
    Steering wheel turned to right with vehicle stopped
    		2.5 to 4.04 V
    Ignition switch on (IG)
    Steering wheel turned to left with vehicle stopped
    		0.95 to 2.5 V
    TRQ2 (h2-2) - TRQG (h2-1)
    		Y - B
    		Torque sensor signal
    		Ignition switch on (IG)
    Steering wheel not turned (without load)
    		2.3 to 2.7 V
    Ignition switch on (IG)
    Steering wheel turned to right with vehicle stopped
    		0.95 to 2.5 V
    Ignition switch on (IG)
    Steering wheel turned to left with vehicle stopped
    		2.5 to 4.04 V
    TRQF (h2-4) - TRQG (h2-1)
    		W - B
    		Torque sensor reference voltage
    		Ignition switch on (IG)
    		3.35 to 3.37 V
    TRQV (h2-3) - TRQG (h2-1)
    		R - B
    		Torque sensor voltage source
    		Ignition switch on (IG)
    		8.5 to 10.5 V
    TRQG (h2-1) - Body ground
    		B - Body ground
    		Torque sensor ground
    		Always
    		Below 1 Ω
    PGND (A2-2) - Body ground
    		W-B - Body ground
    		Power ground
    		Always
    		Below 1 Ω
    C1 (h3-1) - PGND (A2-2)
    		R - W-B
    		Resolver output signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		0.68 to 4.42 V
    C2 (h3-5) - PGND (A2-2)
    		L - W-B*1
    Y - W-B*2
    		Resolver output signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		0.68 to 4.42 V
    S1 (h3-2) - PGND (A2-2)
    		B - W-B
    		Resolver output signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		0.68 to 4.42 V
    S2 (h3-6) - PGND (A2-2)
    		Y - W-B*1
    L - W-B*2
    		Resolver output signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		0.68 to 4.42 V
    R1 (h3-4) - PGND (A2-2)
    		W - W-B*1
    G - W-B*2
    		Resolver excitation signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		2.9 to 5.1 V
    R2 (h3-8) - PGND (A2-2)
    		G - W-B*1
    W - W-B*2
    		Resolver excitation signal
    		Ignition switch on (IG)
    Steering wheel is turned
    		2.9 to 5.1 V
    CANH (E21-2) - CANL (E21-8)
    		Y - W
    		CAN communication line
    		Ignition switch off
    		54 to 69 Ω
    HINT:
    *1: for LHD
    *2: for RHD
    If the result is not as specified, the ECU may have a malfunction.