# Service bulletin 16\-93\-15

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10080781
- Published by NHTSA: 2016\-09\-22
- Manufacturer's number: 16\-93\-15
- Manufacturer's date: 2015\-01\-26
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

THIS BULLETIN ANNOUNCES THE AVAILABILITY OF REPROGRAMMING FILES FOR OPTIMIZING THE TCM LOGIC USED IN THE LISTED CVT\-EQUIPPED VEHICLES. THIS NEW LOGIC PROVIDES ENHANCED CONTROL OF THE CVT PRIMARY PULLEY OIL PRESSURE CIRCUIT FOR AN INCREASED LEVEL OF PERFORMANCE DURING STOP\-AND\-GO DRIVING. THIS REPROGRAMMING MUST BE INSTALLED ANYTIME A CVT ASSEMBLY IS REPLACED WITH A NEW OR REMANUFACTURED CVT ASSEMBLY.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Software

## Vehicles listed

- 2010 to 2012 SUBARU LEGACY
- 2010 to 2012 SUBARU OUTBACK

## Other bulletins for the same vehicles and component

- [078414](/bulletins/10233432.md), 2023-04-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Revised B1650 Diagnostics and ODS Rezeroing Procedure
- [WVU31R](/bulletins/10131702.md), 2018-04-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. 2.5 Liter N/A engine only. REVISED. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. A modification to the Engine Control Module software logic has been developed to improve the performance of the emission control system. This software change will not adversely affect fuel economy or performance. This software update is intended to improve vehicle emissions when the vehicle is operated in cold weather and the engine is turned off and restarted within short periods of time such as in several minute intervals. The A/F sensor contains a heating element, which is controlled by the ECM, and which assists the sensor in reaching an optimum temperature, resulting in better accuracy. When the vehicle is operated under the conditions described above, there could be a longer than desired delay in the ECM?s turning on the A/F sensor heating element, resulting in higher than desired emissions. This software enhancement will correct that condition.
- [15\-193\-16R](/bulletins/10120999.md), 2017-10-27, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). All 2012 to 2015 Models Equipped with Fujitsu Ten \(F10\) Generation 1 \(Gen1\) Audio / Navigation Systems. This bulletin announces a new procedure for updating the operating software used in F10 Gen1 audio / navigation systems. This new procedure eliminates the need to exchange the head unit / SD card to obtain software\-related updates and operating enhancements.
- [SB\-11\-135\-13](/bulletins/10054223.md), 2014-01-03, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: ECM IS AVAILABLE FOR REPROGRAMMING FILES TO ADDRESS FALSE CEL/MIL ILLUMINATION AND THE DIAGNOSTIC TROUBLE CODE \(DTC\) P050A RESULTED FROM SPECIFIC CLUTCH OPERATIONS AND/OR DRIVING PATTERNS AFTER STARTING ENGINE. MODEL 2011\-2013 LEGACY, FORESTER, IMPREZA. \*PE
- [WQC\-39](/bulletins/10047519.md), 2012-12-04, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE CHANGE WILL NOT AFFECT FUEL ECONOMY OR PERFORMANCE, EVEN THOUGH A CORRECTION, FOR ENGINE CONTROL MODULE, HAS BEEN DEVELOPED FOR THE DEFICIENCY IN OBDII SYSTEM THERMOSTAT MONITORING LOGIC. MODELS 2011\-2012 LEGACY, OUTBACK, IMPREZA SEDAN, WAGON, FORESTER, TRIBECA AND 2013 BRZ. \*PE UPDATED 1/31/13. \*PE
- [WVT\-30](/bulletins/10034046.md), 2010-10-13, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. SUBARU SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE CONTROL MODULE \(ECM\) REPROGRAMMING. A MODIFICATION TO THE ENGINE CONTROL MODULE \(ECM\) SOFTWARE LOGIC HAS BEEN DEVELOPED TO IMPROVE THE PERFORMANCE OF THE EMISSION CONTROL SYSTEM. THIS SOFTWARE CHANGE WILL NOT ADVERSELY AFFECT FUEL ECONOMY OR PERFORMANCE. CSC LETTER WAS REC'D. \*PE
- [TB\-06\-39\-09R](/bulletins/10032728.md), 2010-05-06, Service bulletin: SERVICE BRAKES, ELECTRIC; ELECTRICAL SYSTEM:SOFTWARE. SUBARU: ELECTRONIC PARKING BRAKE\-DTC C0251. A REPROGRAMMING FILE IS NOW AVAILABLE TO ADDRESS DTC \(DIAGNOSTIC TROUBLE CODE\) C0251 WHICH WILL CHANGE THE ACTUATOR MOVEMENT DETECTING CRITERIA. \*PE

JSON: [/v1/bulletins/10080781](/v1/bulletins/10080781)

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