Montero XLS 4WD V6-3.5L SOHC (2001)
Oxygen Sensor: Customer Interest
Engine Controls - DTC P0125 Stored in Memory
No: TSB-05-13-OO9REV
DATE: June, 2005
MODEL: 2001 Montero
SUBJECT:
PCM REPROGRAMMING
FOR DTC P0125
This bulletin supercedes TSB-13-0O9, issued April, 2005.
Revised information is indicated by -->.
PURPOSE
Incorrect PCM software parameters may cause Diagnostic Trouble Code P0125 (Excessive Time to Enter Closed Loop Fuel Control) to set. To eliminate
this condition, reprogram the PCM as described in this bulletin. Replace the four heated oxygen sensors after reprogramming the PCM if the were not re
laced in a revious warrant re air after 11/02.
AFFECTED VEHICLES
2001 Montero
PROCEDURE
CAUTION
BATTERY VOLTAGE (AS MEASURED AT THE BATTERY POSTS WITHOUT ELECTRICAL LOAD) MUST BE 12.4V OR HIGHER IN
ORDER TO REPROGRAM THE PCM.
1.
Check the underside of the hood to verify that there is no label previously installed to indicate that this TSB reprogramming has already been done.
2.
Verify that the vehicle's PCM part number is listed in the table in Step 9.
a.
Verify whether the ROM ID is the same as the ROM ID listed in the table in Step 9. If the ROM ID is the same as or higher than the ROM
ID in the table, the PCM has already been reprogrammed for this concern.
3.
Use the MUT-III to erase all DTCs set in the PCM.
4.
Verify that your MUT-III has the most current version of the reprogramming database:
a.
Select "Special Function", then select "ECU Reprogramming."
b.
Select "Database File Display". The database version is displayed in the top right corner of the screen. Make sure the database version is
N05021 or greater.
c.
If the database version is less than N05021, install the latest reflash database. Then go to Step 5.
d.
If the database version is N05021 or greater, go to Step 7.
5.
Turn the ignition key to OFF and disconnect the MUT
