Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
135
Repair and Service Manual
668061
ELECTRICAL SYSTEM
MAIN HARNESS
Power Supply
Tool List
Qty.
DVOM ..........................................................................1
1.
Check for loose wires at each terminal connection
or worn insulation and bare wires touching the
frame.
NOTICE:
Bare wires may cause a short circuit.
If DVOM readings indicate a faulty wire, it is recom-
mended that the condition of the terminals and wire junc-
tion be examined. A faulty wire must be replaced.
2.
Check the condition of the 12V battery.
Check for adequate battery voltage (nominal 12
VDC) by setting DVOM to 30 VDC range and place
the red probe (+) on the battery post with the RED
wire attached. Place the black probe (-) on the bat-
tery post with the black (BLK) wire attached. A read-
ing of 11 VDC or greater indicates adequate battery
condition. No reading indicates:
a. a poor connection between the probes and the
battery terminals.
b. a faulty DVOM. A voltage reading below 11 volts
indicates poor battery condition and the battery
should be recharged before proceeding with the
test.
NOTICE: Due to the resistance of the wires involved
within the harness, voltage readings may be some-
what lower than battery voltage. A reading of 1 volt
below battery voltage is acceptable.
3.
Check the power wire.
Firmly attach the black probe (-) to the battery post
with the BLACK wire attached and the red probe (+)
to the power RED wire terminal at the starter. A
reading of battery voltage indicates that the power
wire is in good condition.
4.
Check the starter.
Inspect the starter for continuity and functionality.
replace if required.
NOTICE: The power wire supplies power to the fuse
block.
5.
Check fuses.
Visually inspect the fuses. Check continuity if neces-
sary. Replace if required.
NOTICE: Use of fuses with incorrect ratings can
damage electrical components.
Circuits and Controls
The electrical system is a 12 volt negative ground system
consisting of:
•
battery
•
stator
•
voltage regulator
•
solenoid controller
•
starter
•
fuses and relays
•
key switch
These components comprise the starting and charging
circuits.
To prevent injury or death from
inadvertent movement of vehicle,
all tests performed requiring the
starter or the engine to rotate must be performed
with the vehicle lifted or the shifter placed in the P
(park) position or the drive belt must be removed.
Follow the lifting procedure in SAFETY Section of
this manual.
Testing Engine Starting Circuit
Tool List
Qty.
DVOM ......................................................................... 1
If the engine does not start, proceed as follows:
1.
Check the battery for a voltage reading 12.2 and
12.5 volts. Inspect for loose or dirty battery post con-
nections.
2.
Check for blown fuses. Replace if necessary.
3.
Check for loose wires at all terminal connections.
4.
Check the complete electrical system for correct cir-
cuitry.
5.
Inspect for worn insulation or bare wires touching
the frame. Bare wires will cause a short circuit.
6.
Check for continuity through the key switch. Refer to
the FAULT TESTING section.
7.
Check the starter operation.
a. Turn the key switch to the ON position.
b. Place the DVOM (set to appropriate DC volts
scale) negative (-) probe on terminal A of the
Summary of Contents for Stampede 900 2017
Page 1: ...Technician s Repair and Service Manual 668061 B 2018...
Page 21: ...9 Repair and Service Manual Notes TABLE OF CONTENTS 668061...
Page 22: ...10 Repair and Service Manual TABLE OF CONTENTS Notes 668061...
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