Dtc 37: Eps Control Unit Internal Circuit (Lnput Circuit For Motor Voltage) - Honda EP3 Service Manual

'14.
Check for continultv 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 E C M
connector E (31P) terminal No. 26.
ECM CONNECTOR E {31PI
ls thete continuity?
YES-Go to step 15.
N O - R e p a i r o p e n i n t h e w i r e b e t w e e n t h e E P S
c o n t r o l u n i t a n d E C M . I
Disconnect the gauge assembly 22P connector.
Check for continuity 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}
Wire side of female terminals
ls there continuity?
Y E S R e p a i r s h o r t t o b o d y g r o u n d i n t h e w i r e
between the EPS control unit, the test tachometer
connector, the gauge assembly, and the ECM.I
NO Check for loose ECM control unit connectors.
lf necessary, substitute a known-good ECM control
u n i t a n d r e c h e c k . I
1 5 .
DTC 37: EPS Control Unit Internal Circuit
(lnput Circuit For Motor Voltage)
1 . C l e a r t h e D T C .
2. Start the engine.
3. Turn the steering wheel from lock-to-lock several
times, and wait 10 seconds or more.
Does the EPS indicator come on?
YES Go to step 4.
NO Check for loose wires or poor connections. lf
the connections are good, the system is OK at this
t r m e . l
4. Stop the engine, and verify the DTC.
ls DTC 37 indicated?
Y€S Check for loose EPS control unit conneclors.
lf necessary, substitute a known-good EPS control
u n i t a n d r e c h e c k . l
NO Perform the appropriate troubleshooting for
the code indicated.l
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