Montero Sport LTD 4WD V6-3.5L SOHC (1999)
Oxygen Sensor: Testing and Inspection
Rear
HEATED OXYGEN SENSOR CHECK
Required Special Tools:
MB991316: Test Harness
MD998464: Test Harness
<Heated oxygen sensor (rear) - Federal and left bank heated oxygen sensor (rear) - California)>
1. Disconnect the heated oxygen sensor connector and connect special tool MD998464 to the connector on the heated oxygen sensor side.
2. Make sure that there is continuity [7 - 40 Ohm at 20 °C (68 °F)] between terminal 1 (red clip of special tool) and terminal 3 (blue clip of special
tool) on the heated oxygen sensor connector.
3. If there is no continuity, replace the heated oxygen sensor.
NOTE:
-
If the scan tool does not display the standard value although no abnormality is found by the above mentioned continuity test and harness check,
replace the heated oxygen sensor (rear).
-
For removal and the installation of the oxygen sensor, refer to Exhaust Pipe and Main Muffler.
<Right bank heated oxygen sensor (rear) - California>
1. Disconnect the heated oxygen sensor connector and connect special tool MB991316 to the connector on the heated oxygen sensor side.
2. Make sure that there is continuity [7 - 40 Ohm at 20 °C (68 °F)] between terminal 1 (red clip of special tool) and terminal 3 (blue clip of special
tool) on the heated oxygen sensor connector
3. If there is no continuity, replace the heated oxygen sensor.
NOTE:
-
If the scan tool does not display the standard value although no abnormality is found by the above mentioned continuity test and harness check,
replace the heated oxygen sensor (rear).
-
For removal and installation of the oxygen sensor, refer to Exhaust Pipe and Main Muffler.