Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK POWER STEERING ECU ASSEMBLY

*a

Component without harness connected

(Power Steering ECU Assembly)

-

-

(a) Measure the voltage and resistance according to the value(s) in the table below.

NOTICE:

When the EPS warning light is illuminated due to a malfunction, the fail-safe function may cause the voltage of the power steering ECU assembly terminals to become 0 V.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F23-1 (IG) - Body ground

LG - Body ground

IG power source

Ignition switch ON

8 to 16 V

F23-7 (CANH) - F23-8 (CANL)

P - W

CAN communication line

Ignition switch off

54 to 69 Ω

z3-1 (TRQ2) - z3-2 (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

z3-2 (TRQG2) - Body ground

G - Body ground

Torque sensor 2 ground

Always

Below 1 Ω

z3-3 (TRQV2) - z3-2 (TRQG2)

L - G

Torque sensor 2 voltage source

Ignition switch ON

4.5 to 5.5 V

z3-7 (TRQV1) - z3-8 (TRQG1)

R - B

Torque sensor 1 voltage source

Ignition switch ON

4.5 to 5.5 V

z3-8 (TRQG1) - Body ground

B - Body ground

Torque sensor 1 ground

Always

Below 1 Ω

z3-9 (TRQ1) - z3-8 (TRQG1)

W - B

Torque sensor 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

F68-1 (PIG) - Body ground

B-W - Body ground

Power source

Ignition switch ON

9 to 16 V

F68-2 (PGND) - Body ground

W-B - Body ground

Power ground

Always

Below 1 Ω

If the result is not as specified, the ECU may be malfunctioning.

    Diagnosis System
    DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here CHECK WARNING LIGHT (a) When a problem occurs in the power steering system, the EPS warning light in the combination meter assembl ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTCs (USING TECHSTREAM) (a) Turn the ignition switch off. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Ente ...

    Other materials:

    Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted Air Conditioner Pressure Sensor): Diagnostic Trouble Code Chart
    DIAGNOSTIC TROUBLE CODE CHART AIR CONDITIONING SYSTEM DTC No. Detection Item DTC Detection Condition Link B1411 Room Temperature Sensor Circuit Any of the following conditions is met: Open in cooler th ...

    Toyota CH-R Service Manual > Power Window Control System: Glass Position Initialization Incomplete (B2313)
    DESCRIPTION The power window regulator motor assemblies are operated by the multiplex network master switch assembly, power window regulator switch assembly or rear power window regulator switch assemblies. The power window regulator motor assembly has motor, regulator and ECU functions. Whe ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2024 Copyright www.tochr.net
    0.0173