Power Assisted Steering System: 6C-14
5 1) Turn the ignition switch ON with the EPS control unit
coupler disconnected, measure the voltage between
terminal “A” and terminal “B” at the coupler.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Voltage ( )
Normal value (“A” – “B”)
1.0 V and more
EPS control unit coupler (Vehicle harness end)
Is the voltage between “A” and “B” normal?
Go to Step 6. • Inspect the wire
harness. (Faulty
indicator light wire)
• Indicator light is
blown.
6 1) Turn the ignition switch OFF.
2) Check for continuity between terminal “A” at the coupler
and body ground.
Special tool
(A): 09900–25008 (Multi circuit tester set)
Tester knob indication
Continuity ( )
EPS control unit coupler (Vehicle harness end)
Are there continuity between “A” and body ground?
Replace the EPS
control unit.
Inspect the wire
harness. (Faulty ground
wire)
Step Action Yes No
“A”
(A)
(ޓ)
“B”
(A)
(–)
I931G3630010-01
“A”
(A)
I931G3630011-01
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