Mariner 4WD L4-2.5L (2010)
In some of the affected vehicles, the transmission solenoid regulator valve bore may wear. The function of a solenoid regulator is to provide regulated
pressure to shift solenoids. Wear in the solenoid regulator bore causes low clutch pressure and results in transmission slips/harsh shifts. Continued
driving with this condition may cause premature wear on the clutches. This may eventually lead to a loss of 4th through 6th gears and ultimately loss of
transmission function. This service action will reprogram the PCM to the latest calibration. This calibration will reposition the solenoid regulator valve to
eliminate bore wear. A flowchart has been developed to help direct you to the proper repair. See Figure 1.
SERVICE PROCEDURE
MODULE REPROGRAMMING
NOTE:
Reprogramming concerns! errors may be caused by the following:
^
Data Link Connector (DLC) or Vehicle Communication Module (VCM) becoming disconnected.
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Allowing the IDS to enter any type of sleep mode.
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Using a wireless IDS to VCM connection.
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Low voltage on the IDS laptop.
^ Low voltage in the vehicle battery (use of a battery charger is recommended).
If you encounter reprogramming concerns, DO NOT DELETE the session. If the original session has accidentally been deleted, recover the original
session from the IDS "TRASH CAN" (located in the lower right corner of the previous session screen) and continue to reprogram.
1. Make sure that all accessories (radio, interior fan, headlights, etc.) are switched off.
2. Verify that the IDS is updated to software release 65.17 and higher or 66.03A and higher.
