Honda FourTrax Foreman Rubicon 2005 Service Manual page 566

ELECTRIC POWER STEERING (EPS)
25-26
EPS ECU INTERNAL CIRCUIT
NOTE:
• Before starting the troubleshooting, check the
connectors fo r loose contacts or corroded termi-
nals, and recheck the
OTe.
Perform the trou bleshooting accordi ng to the DTe
in the following table.
,.-u1
EP"st;~u
Intema
CIrcUIt
(Direction determine logic circuit)
(Regular diagnosis)
,.-u< I
~!,_;:,_
t:I..U Intema CircUit
(lNH
output circuit)
(Initial diagnosis)
1,-u1 I
~P-St:CU
interna
Circuit
(Voltage raise transformation circuit)
(Initial diagnosis)
7-0< I
~~S-ecu
Interns.,
CirCUit
(Voltage raise transformation circuit)
(Regular diagnosis)
10-01 I
~!~ t:(;~ Intem~l
CirCUit
(Current sensor)
(Initial diagnosis)
18-02
EPn'Cu
Intemal,Clrcult
(CulTent sansor off set)
(Regular diagnosis)
18-0' I ~':SECU Jntem~1 ~lrcUit
(Motor current deflection)
T8~~G-
(Regular diagnosis)
~!-S~CUlnterna
I clrCiiit(lM2,
(Regular diagnosis)
I" -u<
~rrcu
internal ci rcuit
(EEPROlvl'
(Regular diagnosis)
1
35
-
01
IEPS ECU,
'nt.m~I ,cl",ult
{CPU)
(Initial diagnosis)
1
35
-
02
I ~!..s.
.ECU
Intemal .clrcUit
(CPU communication)
(Initial diagnosis)
I" -u,
I ~!~
.c""u
Interna CircUit
(CPU communication)
(Regular diagnosis)
, . EPS ECU system inspection
1. Erase the OTC wi th HOS or OLC (page 25-11).
2. Start the engine.
3 . Fully turn the handlebar to the left or r ight
and hold it 10 seconds.
4 .
Check the EPS indicator.
Does the EPS indicator come
on7
NO - System is normal at this time
YES - GO TO STEP 2.
2. OTC inspection
1. Check the OTC with HOS or OlC (page 25-10).
Is
ore
16-01, 16-02, 17-01, 17-02, 18-01, 18-02,
18-05, 18·06, 33·01, 35-01, 35-02
or
35-03
indi-
cated?
NO - Perfo rm the t roubleshooting for the
indicated OTC.
YES - Replace the EPS ECU with a new one
(page 25-37) .