11
Test Procedures
TROUBLESHOOTING AND ELECTRICAL SYSTEM
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
REFER TO
Hour meter adds increments with key
switch ON and engine not running.
Oil pressure switch failed open
See the Briggs & Stratton Vanguard engine
manual (CC P/N 103568101).
10-amp fuse blows repeatedly.
Diode 1 failed closed
Test Procedure 7 – Wire Harness Diodes on
25-amp fuse blows repeatedly.
Diode 4 failed closed
Test Procedure 7 – Wire Harness Diodes on
Starter motor engages when key switch is
in the ON position.
Diode 3 failed closed
Test Procedure 7 – Wire Harness Diodes on
TEST PROCEDURES
Index of Test Procedures
1 – Battery
2 – Fuse
3 – Ground Cables
4 – Key Switch (Starter Circuit)
5 – Starter Control Circuit
6 – Starter Solenoid
7 – Wire Harness Diodes
8 – Neutral Switch (Transaxle)
9 – Wire Continuity
10 – Charge Coil
11 – Voltage Regulator
12 – Ignition Spark
13 – Engine Kill Wire
14 – Grounded Kill Wire
15 – Key Switch (Engine Kill Circuit)
16 – Carburetor Solenoid Circuit
17 – Low Oil Warning Light Circuit
18 – Fuel Level Sending Unit
19 – Fuel Gauge
20 – Hour Meter
21 – Light Switch
22 – Voltage at Headlight Socket
23 – Front Differential Disable Switch (Optional)
24 – Front Differential Limit Switch
TEST PROCEDURE 1 – Battery
See General Warning on page 1-2.
DANGER
• Due to the danger of an exploding battery, wear a full face shield and rubber gloves when working
around a battery.
DANGER CONTINUED ON NEXT PAGE
Page 11-12
2009-2012 XRT 950 Maintenance and Service Manual