Tracker Off-Road 500S Service Manual page 111

Output Voltage
NOTE: Needle adapters or Maxi-Clips will be

required on the multimeter leads as the following tests
are made with the sensor connected:
1. Connect the three-wire plug to the sensor.
PK300
2. Install the needle adapters to the multimeter leads;
then select DC Voltage on the multimeter.
3. Connect the red tester lead to the blue/brown wire
(B) and the black tester lead to the pink/black wire
(A); then turn the ignition switch ON and observe the
meter. The meter should read approximately 0.75 DC
volts in the upright position.
PK300A
4. Remove the two nuts securing the tilt sensor to the
frame; then tilt the sensor 60° or more to the left and
right observing the meter. The meter should read
approximately 3.9 DC volts after approximately one
second in the tilted position. If the meter readings are
not as specified, the tilt sensor is defective.
PK300B
NOTE: When replacing the sensor after testing,

make sure the arrow marking is directed up.
THROTTLE POSITION SENSOR (TPS)
Component data can be retrieved using the Dealer Diag-
nostic Service. Utilize the Sensor Data screen.
 NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
Verifying TPS Adjustment Tool
Before using the TPS adjustment tool, verify its battery
condition. The battery used in the tool is a 9-volt battery.
To check battery condition, use a digital volt/ohmmeter
set on DC volt scale. Test between the adjustment tool
black and red jacks. Insert the red lead of the digital volt-
meter into the red jack of the adjustment tool and the
black lead of the digital voltmeter into the black jack of
the adjustment tool. The green power light of the ana-
lyzer should now be illuminated. If voltage is found
below 4.9 volts, replace the battery.
NOTE: The Test Harness must be plugged into the

analyzer for testing voltage. Always verify battery
voltage is at least 4.9 DC volts before testing TPS.
Testing
1. Remove the seat; then disconnect the three-pin wire
TPS connector plug.
NOTE: Prior to testing the TPS, inspect the three-

wire plug connector on the main harness and the
three-pin plug on the TPS for contamination, broken
pins, and/or corrosion.
2. Connect the TPS Multi-Analyzer Harness connector
#8 to the TPS; then connect the harness to the TPS
Analyzer Tool.
XR410
3. Using a multimeter, connect the tester to the analyzer
as shown in the table below; then select the DC Volt-
age position. With the vehicle off and throttle at idle,
the gauge should read as shown and at Wide-Open
Throttle it should read up to as shown.
Analyzer
Tester Lead
Socket
Black GND
Red VAR
Idle WOT
(DC Volts) (DC Volts)
0.66-0.70 3.98
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