Honda TRX500FM Service Manual page 545

!,LECTRIC POWER STEERING (EPS: FPM/FPE models)
4. Torque Sensor Line and Ground Short Circuit
Inspection
Check for continuity between the wire harness side , - - - - - - - - -- - - - - -- -
EPS ECU 21P (G ray) connector [11 terminals and C1 C3
ground .
Connection: C1 - Ground
C3 - Ground
TOOL:
Test probe
Is there continuity?
YES - GO TO STEP 5.
NO - GO TO STEP 6 .
07ZAJ·RDJA 110
5. Torque Sensor Coil Short Circuit Inspection
(11
Check for continuity between the torque sensor side , -- -- - - - -- -- - - - -- - -
connector
[11
terminals in the EPS unit and ground .
Connection : A - Ground
C - Ground
Is there continuity?
YES - Replace the EPS unit with a new one
(page 16-32), and recheck (short circui t in
the torque sensor coil).
NO - ' Short circuit in the Yellow/red wire.
• Short circuit in the Whitelblue wire.
6. Torque Sensor Line Open Circuit Inspection
C
A
CJ
[11
Check for continuity between the wire harness side
r - - -- - -W . ,-- h - itel-b'-'-e- - - - - - - ,
EPS ECU 21P (Gray) connector
111
and torque Green/orange
Connection: C1 - Yellow/red / . / Yellow/red
sensor 3P (Gray) connector [2) terminals.
C2 - Green/orange
V-
C3 - White/blue C2
g
TOOL :
Test probe
Is there continuity?
YES - GO TO STEP 7.
07ZAJ·ROJA 110
NO Open circuit in the Yellow/ red wire.
Open circuit in the Green/orange wire.
Open circuit in the White/blue wire.
C1 C3
m ii [2[
[1[
24-27