TERMINALS OF ECU
1. CHECK POWER STEERING ECU ASSEMBLY
(a) Measure the voltage and resistance according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|
|
F41-3 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
|
F41-2 (CANL) - F41-1 (CANH) |
W - L |
CAN communication |
Ignition switch off |
54 to 69 Ω |
|
F41-5 (IG) - F41-3 (GND) |
G - W-B |
IG power supply |
Ignition switch ON |
11 to 14 V |
|
F41-7 (SOF+) - F41-8 (SOF-) |
V - LG |
Power steering solenoid valve signal |
|
Pulse generation |
If the result is not as specified, the ECU may have a malfunction.
Problem Symptoms Table
Diagnosis SystemEngine (ignition) switch (vehicles without a smart key system)
Starting the engine
Check that the parking brake is
set.
Check that the shift lever is
set in P.
Firmly depress the brake pedal.
Turn the engine switch to the
“START” position to start the engine.
Changing the engine switch positions
1. ...
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on
or flashes. If a light comes on or flashes, but then goes off, this does not
necessarily indicate a malfunction in the system.
However, if this continues to occur, have the vehicle ...