Lighting System; Combination Switch - Kubota B2650HSDC Workshop Manual

B2650HSDC, B3350HSDC, WSM

[7] LIGHTING SYSTEM

(1) Combination Switch

Combination Switch
1. Remove the steering wheel and panel lower cover.
2. Disconnect the combination switch connector.
3. Remove the combination switch (1) and perform the following
checks 1) to 8).
(1) Combination Switch
1) Connector Voltage
1. Measure the voltage with a voltmeter across the connector B1
terminal and chassis when the main switch is "ON" position.
2. If the voltage differs from the battery voltage, the wiring harness
and main switch is faulty.
Main switch at
Voltage
"ON" position
2) Head Light Switch Continuity when Setting Switch at OFF
Position
1. Set the light switch to the OFF position.
2. Measure the resistance with an ohmmeter across the B1
terminal to the T terminal, the B1 terminal to the terminal 1.
3. If infinity is not indicated, the head light switch is faulty.
B1 terminal –
T terminal
Resistance
(Switch at OFF position)
B1 terminal –
1 terminal
3) Head Light Switch Continuity when Setting Switch at ON
Position
1. Set the light switch to the ON position.
2. Measure the resistance with an ohmmeter across the B1
terminal to the T terminal and the B1 terminal to the terminal 1.
3. If 0 Ω is not indicated, the head light switch is faulty.
B1 terminal –
T terminal
Resistance
(Switch at ON position)
B1 terminal –
1 terminal
4) Turn Signal Light Switch Continuity When Setting Switch
Knob OFF Position
1. Set the turn signal light switch to the OFF position.
2. Measure the resistance with an ohmmeter across the B2
terminal and L terminal, the B2 terminal and R terminal.
3. If infinity is not indicated, the combination switch is faulty.
B2 terminal –
Resistance
L terminal
(Switch knob at OFF
B2 terminal –
position)
R terminal
8-S41
ELECTRICAL SYSTEM
9Y1210822ELS0032US0
B1 terminal –
Battery voltage
Chassis
9Y1210822ELS0033US0
Infinity
9Y1210822ELS0034US0
0 Ω
9Y1210822ELS0035US0
Infinity
9Y1210822ELS0036US0
KiSC issued 05, 2014 A