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Reprogramming For Illumination Of At Oil Temperature Warning Lamp (16-86-12)

Publication date: 2012-12-11
Reference number: 16-86-12

REPROGRAMMING FOR ILLUMINATION OF AT OIL TEMPERATURE WARNING LAMP

REPROGRAMMING FOR ILLUMINATION OF AT OIL TEMPERATURE WARNING LAMP

TECHNICAL SERVICE BULLETIN

Reference Number(s): 16-86-12, Date of Issue:  December 11, 2012
SUBARU: 2013MY Legacy, Outback and Tribeca Models Equipped with 5AT Transmission Low Mileage Vehicles (6000 or less)

INTRODUCTION

This Service Bulletin announces TCM reprogramming file availability to address a concern of the AT Oil Temperature lamp coming on accompanied by any of the following DTCs stored in memory: P0751, P0756, P0761, P0766, P0771, P1840, P1841, P1842, P1843 and/or P1844.

COUNTERMEASURE IN PRODUCTION

New TCM logic was incorporated into production mid-November, 2012 starting with the following VINs:

Model Starting VIN Number
Legacy D*023547
Outback D*255886
Tribeca D*400781

PACK FILE APPLICABILITY

MODEL PAK FILE NAME NEW TCM PART NUMBER OLD TCM PART NUMBERS
Legacy 30919AA074.pak 30919AA074 30919AA070
30919AA071
30919AA072
30919AA073
Outback 30919AA084.pak 30919AA084 30919AA080
30919AA081
30919AA082
30919AA083
Tribeca 30919AB193.pak 30919AB193 30919AB190
30919AB191
30919AB192

SERVICE PROCEDURE/INFORMATION

IMPORTANT: Be sure to confirm the latest SSMIII software version number, 1.35.49.27 dated Nov. 2012 (or newer) has been installed before attempting to perform this procedure.
  1. Reprogram the TCM using the applicable PAK file.
  2. Follow the procedure shown below (and outlined in Service Bulletin 16-80-11R  ) for flushing the transmission fluid and performing the Dynamic Check Mode.
    NOTE: TCM memory must be cleared prior to performing the following procedures.

    Transmission Flush Procedure 

    1. Remove the ATF drain plug and drain ATF.
    2. Remove the oil pan and thoroughly clean (including the magnet) then reinstall following the steps in the applicable Service Manual.
    3. Refill ATF to correct level.

    Dynamic Check Mode 

    1. Raise vehicle on lift.
      CAUTION: Be sure to keep the tires 30cm (12 inches) or more off the ground as the vehicle will vibrate on the lift during the following procedure.
    2. Depress the brake pedal and start the engine (keep pressing the brake pedal until Step 5)  then press VDC OFF switch to deactivate VDC.
    3. Move the transmission select lever to the "D" position and increase the engine speed to 1,000 rpm by pressing the accelerator pedal. Hold engine at 1000 rpm for two minutes.
    4. Release accelerator pedal, then move the select lever to the "N" position for two seconds, then back into the "D" position for two seconds, repeat (N to D) five times.

      The following steps need to be performed in Manual mode using the paddle shift switches.

    5. Move the select lever to the "M" position (Manual mode). Shift up to 2nd using the paddle shift switch (keep in 2nd for two seconds) then shift down to 1st using the paddle shift switch (keep in 1st for two seconds) repeat (2nd to 1st) five times.
    6. Release the brake pedal then accelerate gently to 40 mph by shifting into 3rd using the paddle shift switch.
    7. Keep at 40 mph, then shift up to 4th gear for two seconds then shift down to 3rd gear for two seconds; repeat (4th to 3rd) five times.
    8. Accelerate gently to 50 mph by shifting into 5th gear using the paddle shift switch.
    9. Keep at 50 mph, then shift down to 4th gear for five seconds then shift into 5th gear for five seconds; repeat (4th to 5th) five times.
    10. Decrease the vehicle speed by easing off the accelerator pedal (do not apply the brake pedal). Keep in each gear for five seconds (4th gear, 5 sec., approximate speed 40 mph) -> (3rd gear, 5 sec., approximate speed 30 mph) -> (2nd gear, 5 sec., approximate speed 20 mph) - > (1st, 5 sec., approximate speed 10 mph).
    11. Depress the brake pedal to stop the tires from rotating completely. Move the select lever to the "P" position (this completes the Dynamic check mode).
    12. Check for trouble code(s) using the SSMIII. If codes are stored, clear TCM memory again. The Dynamic Check Mode may store trouble codes due to variation of the wheel speeds.
  3. If the symptom is not corrected after performing the transmission flush and Dynamic Check Mode procedures, the valve body will need to be replaced following the steps in the applicable Service Manual.

SERVICE PROCEDURE/INFORMATION

For vehicles under warranty, this repair can be claimed using the applicable coding below.

LABOR DESCRIPTION LABOR OPERATION # FAIL CODE LABOR TIME
TSB 2013 5AT TCM Reprogramming&ATF Flush B860-780 MCY-22 1.2
Valve Body Replacement for Service Bulletin 16-86-12 C860-781 1.1
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