142
OXYGEN (O2) SENSOR
The Oxygen Sensor (O2 Sensor) is located in the exhaust
pipe.
NOTE: When testing the resistance of the sensor’s
heater, the engine/exhaust pipe must be at room tem-
perature (65-75° F) or inaccurate readings will occur.
1. Open the cargo box; then remove the seat, air filter
cover, and air filter.
2. Remove the backrest and seat base.
3. Disconnect the sensor.
HDX360
NOTE: For this test, the meter must be in OHMS
position.
4. On the sensor side of connector, connect the black
(negative) test lead to one white wire pin; then connect
the red (positive) test lead to the other white wire pin.
Readings should be between 6.7 and 10.1 ohms.
NOTE: If the meter does not read as specified,
replace the sensor.
TEMPERATURE/MANIFOLD ABSOLUTE
PRESSURE (TMAP) SENSOR (500)
NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
1. Disconnect the connector from the sensor located on
top of the throttle body.
2. Select DC Voltage on the tester and turn the ignition
switch to the ON position.
3. Connect the black tester lead to the pink/black wire and
the red tester lead to the orange/blue wire. The meter
should read 4.5-5.5 DC volts. If the meter does not
read as specified, check the ECM connector or wiring.
4. Connect the sensor to the harness; then using Maxi-
Clips, connect the red tester lead to the brown/white
wire and the black tester lead to the pink/black wire.
With the engine running at idle speed, the meter
should read approximately 2.5 DC volts (MAP sen-
sor signal).
5. Connect the red tester lead to the green/red wire. The
meter should read approximately 2.9 DC volts.
NOTE: If the meter does not read as specified,
replace the sensor.
MANIFOLD ABSOLUTE PRESSURE/
INLET AIR TEMPERATURE (MAP/IAT)
SENSOR (700)
NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
1. Disconnect the appropriate sensor (MAP sensor is
located on top of the throttle body; IAT sensor is
located on the right side of the air filter housing).
2. Select DC Voltage on the tester and turn the ignition
switch to the ON position.
3. Connect the leads as shown. If the meter does not
read 4.5-5.5 DC volts, check the ECM connector or
wiring.
4. Connect the appropriate sensor to the harness; then
using MaxiClips, connect the leads as shown. With
the engine running at idle speed, the meter should
read approximately 2.0 DC volts (MAP sensor) or
2.9 DC volts (IAT sensor).
NOTE: If the meter does not read as specified,
replace the sensor.
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR
NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the LCD
gauge (see EFI Diagnostic System in this section).
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
Sensor
Wire Color
MAP
Black to Pink/Black
Red to Orange/Blue
IAT
Black to Pink/Black
Red to Green/Red
Sensor
Wire Color
MAP
Black to Pink/Black
Red to Brown/White
IAT
Black to Pink/Black
Red to Green/Red
Component data can be retrieved using the CATT II. Uti-
lize the Sensor Data screen.
Summary of Contents for HDX 500 2017
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