129
2. Turn the ignition switch to the ON position. The
multimeter should read battery voltage. If battery
voltage is not indicated, check the 30-amp main and
10-amp ignition fuses, wiring harness, or the ignition
switch.
3. Remove the red tester lead and connect to the
blue/brown wire (B). The multimeter should read
less than 0.2 DC volts. If the specified voltage is not
indicated, check wire connections at the ECM or
substitute another ECM to verify the test.
Output Voltage
NOTE: Needle adapters or a “break-out” harness
will be required on the multimeter leads as the follow-
ing tests are made with the sensor connected.
1. Connect the three-wire plug to the sensor; then
remove the left-side mounting screw securing the
sensor to the rear frame.
XR198
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 0.3-2.9 DC volt.
4. Tilt the sensor 60° or more to the left and right
observing the meter. The meter should read 3.0-8.0
DC volts after approximately one second in the tilted
position. If the meter readings are not as specified,
the tilt sensor is defective.
XR199
NOTE: When replacing the sensor after testing,
make sure the arrow marking is directed up.
CD705D
THROTTLE POSITION SENSOR (TPS)
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. On the 500, remove the left-side engine cover; then
disconnect the three-wire TPS connector plug.
KC517
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, bro-
ken pins, and/or corrosion.
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
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