DTC P1518, TCM Reprogramming File Availability (16-118-18)

Publication date: 2018-12-21
Reference number: 16-118-18

DTC P1518, TCM REPROGRAMMING FILE AVAILABILITY

TECHNICAL SERVICE BULLETIN

Reference Number(s): 16-118-18, Date of Issue: December 21, 2018

SUBARU:

2019 Forester

APPLICABILITY

2019MY Forester

INTRODUCTION

This bulletin announces reprogramming file availability to optimize the Transmission Control Module (TCM) for detection of DTC P1518: STARTER SWITCH CIRCUIT LOW. After using the Remote Engine Starter (RES) to start an applicable vehicle equipped with the Auto Start-Stop System, the TCM may mistakenly detect DTC P1518 when the engine automatically restarts and cause the AT TEMP warning lamp to illuminate.

PRODUCTION CHANGE INFORMATION

This bulletin will be revised with a starting VIN for this logic change when it becomes available.

PACK FILE APPLICABILITY

Model	PAK File Name	New TCM Part Number	Old TCM Part Number	Decryption Keyword	New TCM CID Number
2019MY W/OUT Paddle Shift	30919AG021.pak	30919AG021	30919AG020	E8D1EAD5	S1F66260
2019MY WITH Paddle Shift	30919AG031.pak	30919AG031	30919AG030	5CC30E49	S1F64260

SERVICE PROCEDURE/INFORMATION

Step 1: Reprogram the TCM using the SSM4 following the normal FlashWrite procedure.

NOTE: SOA now highly recommends connecting the Midtronics GR8 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module is being reprogrammed. Once the GR8 is connected to the vehicle, as long as the battery is fully charged, it takes less than 3 minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming.

VERY IMPORTANT: This information is applicable to the Midtronics GR8 Diagnostic Battery Charger ONLY. It does not apply to any other brand/type of "generic" battery charger whatsoever. ONLY the GR8 and its Power Supply Mode feature has been tested and approved by Subaru of America, Inc. (SOA).

If the GR8 indicates the vehicle's battery must be charged, charge the battery using the GR8 before proceeding to reprogram the vehicle while using the Power Supply Mode.

NOTE: Control module failures as a result of battery discharge during reprogramming are not a matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual.

Step 2: Using the SSM4, clear the AT Learning Data using the following procedure:

Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data.
Click "YES" and when "Execute Clear AT Learning" is displayed, click "YES" again.
Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning.

Step 3: Using the SSM4, perform the AT Learning Control following the procedure outlined in the applicable Service Manual.

WARRANTY/CLAIM INFORMATION

For vehicles within the Basic New Car Limited or Powertrain Warranty period or covered by a Subaru Added Security Powertrain, Classic or Gold plan, this repair may be submitted using the following claim information:

Labor Description	Labor Operation #	Fail Code	Labor Time
TCM Reprogramming, Clear AT Learning and perform Learning Control	A860-732	MJZ-48	0.7

IMPORTANT: The NEW Calibration Identification number (CID) for any newly-installed programming (as confirmed from the actual control module AFTER installation) MUST be noted on the repair order as this information is required for claim submission.

NOTE: The pack file listings provided in this bulletin are the latest available at the time of publishing. Updates are often released thereafter without revision to the original bulletin. For this reason, it is critical to always have the latest version of Select Monitor software installed on your system. You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in FlashWrite, reprogram using that file.

IMPORTANT REMINDERS:

SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time.
Always check for any open recalls or campaigns anytime a vehicle is in for servicing.
Always refer to STIS for the latest service information before performing any repairs.