Toyota Corolla Cross: Terminals Of Ecu

*a

Component without harness connected

(Power Steering ECU Assembly)

-

-

I21-1 (IG) - Body ground

IG power source

Ignition switch ON

8 to 16 V

I21-7 (CANH) - I21-8 (CANL)

CAN communication line

Ignition switch off

54 to 69 Ω

z7-1 (TRQ2) - z7-2 (TRQG2)

Torque sensor 2 signal

• Ignition switch ON and steering wheel not being turned (without load)*1
• Engine running and steering wheel not being turned (without load)*2

2.3 to 2.7 V

• Ignition switch ON and steering wheel being turned to the right with vehicle stopped*1
• Engine running and steering wheel being turned to the right with vehicle stopped*2

1.2 to 2.5 V

• Ignition switch ON and steering wheel being turned to the left with vehicle stopped*1
• Engine running and steering wheel being turned to the left with vehicle stopped*2

2.5 to 3.8 V

z7-2 (TRQG2) - Body ground

Torque sensor 2 ground

Always

Below 1 Ω

z7-3 (TRQV2) - z7-2 (TRQG2)

Torque sensor 2 voltage source

Ignition switch ON

4.5 to 5.5 V

z7-7 (TRQV1) - z7-8 (TRQG1)

Torque sensor 1 voltage source

Ignition switch ON

4.5 to 5.5 V

z7-8 (TRQG1) - Body ground

Torque sensor 1 ground

Always

Below 1 Ω

z7-9 (TRQ1) - z7-8 (TRQG1)

Torque sensor signal

• Ignition switch ON and steering wheel not being turned (without load)*1
• Engine running and steering wheel not being turned (without load)*2

2.3 to 2.7 V

• Ignition switch ON and steering wheel being turned to the right with vehicle stopped*1
• Engine running and steering wheel being turned to the right with vehicle stopped*2

2.5 to 3.8 V

• Ignition switch ON and steering wheel being turned to the left with vehicle stopped*1
• Engine running and steering wheel being turned to the left with vehicle stopped*2

1.2 to 2.5 V

I42-1 (PIG) - Body ground

Power source

Always

9 to 16 V

I42-2 (PGND) - Body ground

Power ground

Always

Below 1 Ω