Honda Civic Service Manual page 528

9. Turn the ignition switch ON (ll), and measure the
voltage between EPS control unit connector B (2P)
terminal No. 1 and body ground
EPS CONTROL UNIT CONNECTOR B (2P)
M1 IREDI H
r-_ -1 ||
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Y
I
Wire side oI female terminals
Is there battety voltage?
YES Repair short to power in the + circuit wire
between the EPS control unit and the motor.I
N O - G o t o s t e p 1 0 .
Measure the voltage between EPS control unit
c o n n e c t o r B ( 2 P ) t e r m i n a l N o . 2 a n d b o d y g r o u n d .
EPS CONTROL UNIT CONNECTOR B (2P)
1 0 .
raz rcnrrrr l{
l-t
. I
I
(v)
Y
I
Wire side of female terminals
ls there battery voltage?
YES-Repair shortto power in the - circuitwire
between the EPS control unit and the motor.!
N O G o t o s t e p 1 1 .
1 1 . T urn the ignition switch is OFF.
Substitute a known-good EPS control unit, and
connect all the disconnected connectors.
Start the engine, and turn the steering wheel from
lock to lock several times.
Does the EPS indicator come on?
Y E S - G o t o s t e p 1 4 .
NO-Check for loose or poor connections atthe
EPS control unit and the motor connections. lfthe
connections are good, replace the EPS control unit
a n d r e c h e c k . l
S t o p t h e e n g i n e , a n d v e r i t y t h e D T C .
ls DTC 41 ind icated?
YES Replace the steering gearbox motor and
r e c h e c k . l
NO Perform the appropriate troubleshooting for
t h e c o d e i n d i c a t e d . l
1 3 .
1 4 .
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