ELECTRICAL SYSTEM
Horn Check that the horn sounds when applying the specified voltage to both terminals of the horn, T1 and T2.
Up
Replace the horn with a new one if it does not sound or its sound is abnormal.
T1
Operating voltage: DC 12 V (gasoline-engine truck) : DC 24 V (diesel-engine truck) Note: The installed position in an actual truck is as per the illustration.
T2 Down Vent hole Contact Coil
209628
Tank Unit
F
3/4
1/2
Fuel pump Pressure relief valve
1/4
Fuel filter
E
Referential Standards
Float position
E
1/4
1/2
3/4
F
Standard resistance value (ohm)
80
49.5
32
19
10
Tolerance (ohm)
+12 +12
–
±3
–
+1.0 -0.5 210782
3-7