Honda Civic Service Manual page 525

EPS Gomponents
7 .
8 .
DTC Troubleshooting (cont'dl
Turn the ignition switch OFF, and disconnect EPS
control unit connector C (20P).
Start the engine, and let it idle.
Measure the voltage between EPS control unit
c o n n e c t o r C { 2 0 P ) t e r m i n a l N o . 1 9 a n d b o d y g r o u n d .
EPS CONTROL UNIT CONNECTOR C {2OP)
ls there about 6 V at idle? (With the meter set lol
t requency, is there 33 Hz per 1,000 engine rpm? )
YES Check for loose EPS control unit connectors.
lf necessary, substitute a known-good EPS control
u n i t a n d r e c h e c k . l
NO Repair open in the wire between the EPS
c o n t r o l u n i t a n d t h e E C M . I
Turn the ignition switch OFF, and disconnect EPS
control unit connector C (20P).
Start the engine, and let it idle.
9 .
1 0 .
Wire side of {emale terminals
17-34
11. Measure the voltage between EPS control unit
c o n n e c t o r C ( 2 0 P ) t e r m i n a l N o . 1 9 a n d b o d y g r o u n d .
EPS CONTROL UNIT CONNECTOR C {2OPI
Wire side of female terminals
ls there about 6 V at idle? (With the metet set tor
trequency, is therc 33 Hz per 1,000 engine rpn?)
YES Check for loose EPS control unitconnectors.
lf necessary, substitute a known-good EPS control
u n i t a n d r e c h e c k . I
NO Go to step
'12.
Turn the ignition switch OFF.
Disconnect the ECM connector E (31P) connector.
1 2 .
1 3 .
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