Horn; Measuring The Voltage Of The Horn Terminal; Inspection Of Horn Switch; Inspection Of Horn - Kubota U20-3 Workshop Manual

U20-3, U25-3 WSM
Fig.41
Fig.42
Fig.43
Fig.44

[14]Horn

1. Measuring the voltage of the horn terminal

(Fig.14)
• Key switch : ON
• Horn switch: ON
12 V
Other than 12 V : Check for continuity.
2. Inspection of horn switch (Fig.42)
• Turn ON/OFF the horn switch and check if
the pointer of the tester shakes.
Shaking
Not shaking : Faulty
3. Inspection of horn (Fig.43)
• Apply 12 V between the horn terminals and
check if the horn sounds.
Sounding
Not sounding : Faulty
4. Continuity check (Fig.44)
• Disconnect the coupler
• Key switch: OFF
(1) Check for continuity between the horn
coupler (1) and body earth.
(2) Check for continuity between the horn
coupler (1) and horn switch coupler 2.
(3) Check for continuity between the horn
coupler (1) and fuse BOX10A.
V-S-28
Electrical system (Service section)
: Normal. Inspect the
horn.
Inspect the horn switch
: Normal
: Normal