Honda 2005-2008 RX500 FA Service Manual page 456

'61HN252' by American Honda Motor Co. - Page 456 of 540
[2005-2008] [TRX500 FA/FGA]
LIGHTS/METERS/SWITCHES
Remove the following:
Check the cooling
system (page 6-3)
before performing
this inspection If
the abnormality is
found when the
engine is hot.
22-18
1 of 1
Temperature indicator does not come on when the
ignition switch is turned ON
Disconnect the engine control module (ECM) 21P
(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:
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).
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.
Temperature indicator stays on and the fan motor
does not stop
recoil starter cover (page 2-4)
fuel tank cover (page 2-6)
air intake duct (page 6-10)
Disconnect the engine coolant temperature (ECT)
sensor connector and check the fan motor with the
ignition switch ON.
If the motor stops, check the ECT sensor (page 22-
21).
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
'05, '06 shown:
21P (GRAY) CONNECTOR
CONNECTOR
Bu/R
Y/G
CONNECTOR
EOT SENSOR
Bu/R
ECT SENSOR
3/9/2008 11:24 PM