SkyTrak 3606 Service Manual - Manual (Page 402)

Section 10
10-84 Model 3606 • Origin 10/99
10.9 ELECTRICAL SYSTEM
TROUBLESHOOTING
This section provides an easy reference guide covering
the most common problems that occur in the electrical
system.
Electrical System Troubleshooting
Problem Possible Cause Remedy
1. HORN doesn’t sound when
horn button is pressed.
1. No voltage at horn; broken wire or
blown fuse.
2. Corroded electrical ground at horn
mounting.
3. Loose or broken wiring.
4. Defective horn switch.
5. Defective horn.
1. Replace wiring and fuse as
required.
2. Repair electrical ground.
3. Repair or replace wiring.
4. Test horn switch for continuity
with horn button pressed; replace
switch if open.
5. Remove horn from vehicle and
test horn using short, heavy-
gauge wires connected to a
fused or otherwise protected 6-
amp, 12-volt DC power supply
2. Horn sounds continuously
although horn button is not
being pressed.
1. Stuck horn button.
2. Defective horn switch
3. Short circuit in wiring.
1. Free horn button; inspect and
eliminate cause of sticking.
2. Test horn switch for continuity
without pressing horn button;
replace switch if closed.
3. Determine and repair cause of
short circuit
3. BACKUP ALARM doesn't
sound with travel select
lever in REVERSE (R).
1. No voltage at backup alarm;
broken wire.
2. Short circuit in wiring.
3. Defective travel select switch.
1. Check for voltage at backup
alarm wire leads; determine and
repair cause of broken wiring as
required.
2. Determine and repair cause of
short circuit.
3. Test travel select switch for
continuity; replace as required.
4. Backup alarm sounds with
travel select lever in
NEUTRAL (N) and/or
FORWARD (F).
1. Short circuit in wiring.
2. Defective travel select switch.
1. Determine and repair cause of
short circuit.
2. Test travel select switch for
continuity; replace as required.
5. OPERATORS DISPLAY
PANEL warning indicator
lights do not illuminate.
• During lamp test?
• During operation?
1. No voltage at panel; loose or
broken wiring or blown fuse.
2. Defective operators display panel.
1. Replace wiring and fuse as
required.
2. Replace operators display panel.
6. Operators display panel
indicators illuminate contin-
uously with ignition key
switch in the RUN position
(after lamp test).
1. Short circuit in wiring.
2. Defective operators display panel
1. Determine and repair the cause
of the short circuit.
2. Replace operators display panel