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.
Toyota CH-R Service Manual > Lumbar Support Adjuster Assembly: Inspection
INSPECTION
PROCEDURE
1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY
(a) Check the operation of the lumbar support adjuster assembly.
(1) Apply battery voltage to the lumbar motor connector, and check that
the lumbar support adjuster assembly operates smoothly as follows.
OK:
...
Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Side-mounted
Air Conditioner Pressure Sensor): Dtc Check / Clear
DTC CHECK / CLEAR
DTC CHECK USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.
Body Electrical > Air Conditioner > Trouble Codes
(e) Ch ...