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3. TROUBLESHOOTING GUIDE
(8) Hard steering
■ EPS steering system
In maintenance mode:
D (Torque sensor output
voltage)
EPS motor
CN3E-1
CN3E-2
Torque sensor
L160
G161
W162
EPS motor controller
Key switch ............... Turn it ON.
Turn the steering wheel.
Key switch ............... Turn it ON.
Turn the steering wheel.
Below 0.2 V
4.8 V or more
Replace the EPS motor.
1.0 to 3.8 V
0 to 40 V
■ Orbitrol steering system
In maintenance mode:
O (Pump motor rpm)
In maintenance mode:
O (Pump motor rpm)
Steering wheel angle sensor
BR 230
BG 243
LY 249
BY 244
LG 246
Pump motor inverter
Key switch ............... Turn it ON.
Turn the steering wheel.
Key switch ............... Turn it ON.
When F/R switch is not in neutral.
0 rpm
F/R swtich
WL 54
WBr 53
0 to below 360 rpm
360 to 600 rpm
In maintenance mode:
O (Pump motor rpm)
Key switch ............... Turn it ON.
Turn the steering wheel clockwise
or counterclockwise to stop.
Steering potentiometer
YR 44
0 to 600 rpm
Below
360 rpm
Below
600 rpm
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