'61HN252' by American Honda Motor Co. - Page 456 of 540
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
1 of 1
3/9/2008 11:24 PM
[2005-2008] [TRX500 FA/FGA]
LIGHTS/METERS/SWITCHES
Temperature indicator does not come on when the
ignition switch is turned ON
Disconnect the engine control module (ECM) 21P
'05, '06 shown:
21P (GRAY) CONNECTOR
(Gray) and ECM 21P (Black) connectors and short
the Blue/red and Green wire terminals with a
jumper wire.
Turn the ignition switch ON and check the tempera-
ture indicator.
If the indicator does not come, check for open cir-
cuit in Blue/red and Green wire. If the wires are
normal, the combination meter is faulty.
Temperature indicator does not go off when the fan
motor stops
Remove the following:
CONNECTOR
recoil starter cover
(page 2-4)
fuel tank cover
(page 2-6)
air intake duct
(page 6-10)
Disconnect the connector from the engine coolant
temperature (ECT) sensor and check the tempera-
ture indicator with the ignition switch ON.
If the indicator goes off, check the ECT sensor
(page 22-20).
EOT SENSOR
If the indicator does not go off, disconnect the
engine control module (ECM) 21P (Black) con-
nector and meter 14P (Gray) connector, and
check for short circuit in related wires as shown.
Bu/R
Bu/R
Y/G
Temperature indicator stays on and the fan motor
does not stop
Check the cooling
Remove the following:
CONNECTOR
system
(page 6-3)
recoil starter cover
(page 2-4)
before performing
fuel tank cover
(page 2-6)
this inspection If
air intake duct
(page 6-10)
the abnormality is
Disconnect the engine coolant temperature (ECT)
found when the
sensor connector and check the fan motor with the
engine is hot.
ignition switch ON.
If the motor stops, check the ECT sensor
(page 22-
21).
ECT SENSOR
22-18