Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
ELECTRICAL SYSTEM
Engine Oil Pressure Switch Continuity
1. Disconnect the lead (2) from the engine oil pressure switch (1).
2. Measure the resistance with an ohmmeter across the switch
terminal and the chassis.
3. If 0 ohm is not indicated in the normal state, the switch is faulty.
4. If infinity is not indicated at pressure over 4.9 kPa (0.5 kgf/cm
2
,
7
psi), the switch is faulty.
Resistance
(Switch terminal -
Chassis)
In normal state
00
At pressure over
approx. 4.9 kPa
(0.5 kgffcm
2
,
7 psi)
Infinity
(1 )
3TMABAB9P038A
(13) Gauge
F
3TMABAB9P040A E
3TMABAB9P041 A
(1) Engine Oil Pressure Switch (2) Lead
W1055934
Fuel Level Sensor
1) Sensor Continuity
1. Remove the fuel level sensor from the fuel tank.
2. Measure the resistance with an ohmmeter across the sensor
terminal and its body.
3. If the reference values are not indicated, the sensor is faulty.
Resistance
(Sensor
terminal-
its body)
Reference
value
Float at upper-most
position
1 to
50
Float at lower-most
position
103 to
117 0
E: Empty F: Full
W10582369
Coolant Temperature Sensor (Thermo Unit)
1) Lead Terminal Voltage
(a)
1. Disconnect the lead from the coolant temperature sensor after
turning the main switch
OFF.
2. Turn the main switch ON and measure the voltage with a
voltmeter across the lead terminal and the chassis.
If the voltage differs from the battery voltage, the wiring harness,
fuse
or coolant temperature gauge is faulty.
Voltage Lead terminal - Chassis Approx. battery voltage
2) Sensor Continuity
1. Measure the resistances with an ohmmeter across the sensor
terminal and the chassis.
2. If the reference value is not indicated, the sensor is faulty.
Resistance
(Sensor terminal
Chassis)
Reference
value
Approx.
16.1 0
Approx. 27.4 0
Approx. 51.9 0
Approx.
153.90
at 120 °C (248 OF)
at 100°C (212 OF)
at 80°C (176 OF)
at 50°C (122 OF)
(1) Coolant Temperature Sensor
(a) From Temperature Gauge
W10458796>
3TMABAB9P042A
6-S24