
Power Assisted Steering System: 6C-36
Step
Action
Yes
No
1
1) Turn the ignition switch OFF.
2) Check the torque sensor coupler for loose or poor
contact. If OK, measure the torque sensor input voltage.
3) Disconnect the torque sensor coupler.
4) Turn the ignition switch ON.
5) Measure the input voltage between R wire “A” and
ground. If OK, then measure the input voltage between
R wire “A” and B wire “B”.
Special tool
(A): 09900–25008 (Multi circuit tester set)
(B): 09900–25009 (Needle-point probe set)
Tester knob indication
Voltage (
)
Torque sensor input voltage
5.0 V
Is voltage OK?
Go to step 2.
• Loose or poor
contacts on the
torque sensor.
• Power supply circuit
(R wire) or ground
circuit (B wire) 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)”.
I931G3630026-01
(A)
“A”
“B”
(B)
(B)
I931G3630032-01
Summary of Contents for LT-A750X/P
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Page 54: ...4A 6 Brake Control System and Diagnosis ...
Page 135: ...Prepared by March 2009 Part No 99501 47050 01E Printed in Japan 132 ...
Page 136: ...Printed in Japan K9 ...