6C-31 Power Assisted Steering System:
1 6) Next, measure the voltage between G wire “C” and
ground, G wire “C” and B wire “B”, W wire “D” and
ground and W wire “D” and B wire “B”. If the voltage of
each measurement is 0 V OK.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Voltage ( )
Measuring voltage
0 V
Is voltage OK?
Go to Step 2. • Loose or poor
contacts on the
torque sensor.
• Power supply circuit
(R wire) open.
• Power source or
power supply circuit
shorted to torque
sensor (main or sub)
circuit.
• Torque sensor (main
or sub) circuit open.
• If check result is not
satisfactory, replace
the EPS control unit
with a new one. Refer
to “EPS Control Unit
Removal and
Installation (LT-
A750XP/ZK9)
(Page 6C-48)”.
Step Action Yes No
(A)
“C”
“B”
“D”
I931G3630028-01
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