Dtc 21: Voltage For Ig1 - Honda S2000 Service Manual

9. On the sensor side, check for resistance between
the torque sensor 3P connector terminals No. 1 and
No.2, and between terminal No. 2 and No. 3.
TOROUE SENSOR 3P
CONNECTOR
T e r m i n a l s i d e o I m a l e t e r m i n a l s
ls the resistance between 12- 13 Q (at20',
68'F)?
YES-The EPS system is OK at this time. Check for
loose EPS control unit connectors. lf necessary,
substitute a known-good EPS control unit and
recheck.l
NO - Replace the torque sensor,I
2.
3 .
DTC 21:Voltage For lG1
' 1 .
c h e c k t h e I N S T R U M E N T L I G H T ( 7 . 5 A ) f u s e i n t h e
under-dash fuse/relay box, and reinstall the fuse if
it is OK.
NOTE: All indicators except the charging system
i n d i c a t o r w i l l n o t c o m e o n w h e n t h e I N S T R U M E N T
LIGHT (7.5 A) fuse is blown.
ls the tuse OK?
YES Go to step 2.
NO Replace the fuse and recheck.l
Dlsconnect EPS control unit connector B (14P).
Turn the ignition switch ON (ll).
Measure the voltage between terminal No, 1 and
body ground.
EPS CONTROL UNIT
CONNECTOR B {.l4P}
Terminal side of Iemale terminals
ls there battery voltage?
YES Check for loose EPS control unitconnectors.
lf necessary, substitute a known-good EPS control
unit and recheck.l
NO Check for an open in the wire between the
under-dash fuse/relay box and the EPS control unit,
and repair it if necessary. lf the wire is OK, check
for an open circuit inside the under-dash fuse/relay
b o x . l
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