TERMINALS OF ECU
1. CHECK POWER STEERING ECU
HINT:
As connector z8 uses a lock lever, each terminal cannot be checked while the connector is still connected to the power steering ECU.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
---|---|---|
z8-1 (V) |
W |
V phase motor output |
z8-2 (U) |
B |
U phase motor output |
z8-3 (W) |
R |
W phase motor output |
(a) Measure the voltage and resistance according to the value(s) in the table below.
NOTICE:
When the P/S warning light is illuminated during a malfunction, the fail-safe function may cause the voltage of the power steering ECU terminals to become 0 V.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
D19-1 (PIG) - D19-2 (PGND) |
R - B |
Power source |
Always |
11 to 14 V |
D19-2 (PGND) - Body ground |
B - Body ground |
Power ground |
Always |
Below 1 Ω |
D20-1 (CANH) - D20-7 (CANL) |
BR - W |
CAN communication line |
Ignition switch off |
54 to 69 Ω |
D20-6 (IG) - D19-2 (PGND) |
GR - B |
IG power source |
Ignition switch ON |
11 to 14 V |
z9-1 (RZV) - D19-2 (PGND) |
R - B |
Rotation angle sensor excitation output signal |
Engine running, steering wheel being turned |
-2.42 to 2.42 V |
z9-3 (RZG) - D19-2 (PGND) |
B - B |
Rotation angle sensor excitation circuit GND |
Always |
Below 1 Ω |
z9-5 (RZCS) - D19-2 (PGND) |
L - B |
Rotation angle sensor COS aspect output signal |
Engine running, steering wheel being turned |
-0.73 to 0.73 V |
z9-6 (RZSN) - D19-2 (PGND) |
Y - B |
Rotation angle sensor SIN aspect output signal |
Engine running, steering wheel being turned |
-0.73 to 0.73 V |
z10-5 (TRQ1) - z10-8 (TRQG) |
W - B |
Torque sensor signal |
Engine running, steering wheel not turned (without load) |
2.3 to 2.7 V |
Engine running, steering wheel turned to right with vehicle stopped |
2.5 to 3.8 V |
|||
Engine running, steering wheel turned to left with vehicle stopped |
1.2 to 2.5 V |
|||
z10-6 (TRQV) - z10-8 (TRQG) |
R - B |
Torque sensor voltage source |
Ignition switch ON |
4.5 to 5.5 V |
z10-7 (TRQ2) - z10-8 (TRQG) |
Y - B |
Torque sensor signal |
Engine running, steering wheel not turned (without load) |
2.3 to 2.7 V |
Engine running, steering wheel turned to right with vehicle stopped |
1.2 to 2.5 V |
|||
Engine running, steering wheel turned to left with vehicle stopped |
2.5 to 3.8 V |
|||
z10-8 (TRQG) - Body ground |
B - Body ground |
Torque sensor ground |
Always |
Below 1 Ω |
If the result is not as specified, the ECU may have a malfunction.
Using the automatic mode
Press
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Installation
INSTALLATION
PROCEDURE
1. INSTALL FRONT BUMPER ASSEMBLY
(a) Connect each connector.
(b) Engage the 4 claws to install the front bumper assembly.
HINT:
Use the same procedure for the RH side and LH side.
...
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Replace or rotate tires in accordance with maintenance schedules and treadwear.
- Checking tires
1. New tread
2. Treadwear indicator
3. Worn tread
The location of treadwear indicators is shown by the “TWI” or “Δ” marks, etc.,
molded ...