Temperature Warning System - Honda NX250 1989 Manuals

LIGHTS/METERS/SWITCHES
TROUBLESHOOTING

TEMPERATURE WARNING SYSTEM

If the temperature warning light does not come on:
Disconnect the wires from the temperature sensor and short to-
gether the G/Bu and ground wires with a jumper wire.
— Check the warning light with ignition switch ON.
LIGHT DOES NOT COME ON
Measure the voltage between the G/Bu wire and ground
NO VOLTAGE
Disconnect the temperature unit 2P connector and the G/Bu wire
from the meter and measure the voltage between the Bl (2P con-
nector) and G/Bu wire with ground.
NO VOLTAGE
(9) THERMOSTATIC
SWITCH
(6) FAN MOTOR
19-2
LIGHT COMES ON
LOW VOLTAGE
LOW VOLTAGE
(1) WARNING INDICATOR
(2) TEMPERATURE
UNIT
10 A
18) SUB FUSE
-•-Faulty temperature sensor
Faulty temperature unit
Faulty temperature unit
• Open circuit in the wire harness between the 2P
connector and temperature sensor.
(3) TEMPERATURE
SENSOR
(7) MAIN
"#• FUSE
(5) IGNITION
SWITCH
R: Red
Bl: Black
Bu; Blue
O: Orange
G: Green
(4) BATTERY