Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Terminals Of Ecu

*a

Component without harness connected

(Power Steering ECU Assembly)

-

-

J4-1 (IG) - Body ground

P - Body ground

IG power source

Engine switch on (IG)

8 to 16 V

J4-7 (CANH) - J4-8 (CANL)

GR - W

CAN communication line

Engine switch off

54 to 69 Ω

z8-1 (TRQ2) - z8-2 (TRQG2)

Y - G

Torque sensor 2 signal

Engine running and steering wheel not being turned (without load)

2.3 to 2.7 V

Engine running and steering wheel being turned to the right with vehicle stopped

1.2 to 2.5 V

Engine running and steering wheel being turned to the left with vehicle stopped

2.5 to 3.8 V

z8-2 (TRQG2) - Body ground

G - Body ground

Torque sensor 2 ground

Always

Below 1 Ω

z8-3 (TRQV2) - z8-2 (TRQG2)

L - G

Torque sensor 2 voltage source

Engine switch on (IG)

4.5 to 5.5 V

z8-7 (TRQV1) - z8-8 (TRQG1)

R - B

Torque sensor 1 voltage source

Engine switch on (IG)

4.5 to 5.5 V

z8-8 (TRQG1) - Body ground

B - Body ground

Torque sensor 1 ground

Always

Below 1 Ω

z8-9 (TRQ1) - z8-8 (TRQG1)

W - B

Torque sensor 1 signal

Engine running and steering wheel not being turned (without load)

2.3 to 2.7 V

Engine running and steering wheel being turned to the right with vehicle stopped

2.5 to 3.8 V

Engine running and steering wheel being turned to the left with vehicle stopped

1.2 to 2.5 V

J5-1 (PIG) - Body ground

W - Body ground

Power source

Always

9 to 16 V

J5-2 (PGND) - Body ground

B - Body ground

Power ground

Always

Below 1 Ω