16-97-15

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SERVICE MANAGER
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SERVICE BULLETIN
APPLICABILITY:
SUBJECT:
All 2013-16MY, 4-Cylinder, N/A Models with CVT
NUMBER: 16-97-15
DATE: 11/04/15
Delayed or Harsh Engagement of CVT
INTRODUCTION
This bulletin provides a procedure for diagnosing a customer concern of a delayed and / or harsh
engagement of the CVT (model TR580) when shifting into Reverse or Drive from Neutral.
SERVICE PROCEDURE / INFORMATION
IMPORTANT: Always road test the vehicle to confirm the condition(s) as reported before
proceeding.
If determined necessary after road testing, perform a Time Lag Test following the procedure below.
•
With the CVTF temperature between 140-176 degrees F (60-80 degrees C), the elapsed time
standard for CVT engagement is 1.5 seconds when shifting into either Reverse or Drive from
Neutral.
•
Use a stopwatch to measure the elapsed time from when the shifter is moved until the
engagement is felt as accurately as possible.
•
With the engine idling, move the shifter from Neutral into Drive and measure the elapsed
time until engagement is felt. Perform this test 3 times leaving at least 1 minute between
each test making accurate notes of your results.
•
With the engine idling, move the shifter from Neutral into Reverse and measure the elapsed
time until engagement is felt. Perform this test 3 times leaving at least 1 minute between
each test making accurate notes of your results.
•
Average your times for both tests to determine your final result.
If the Time Lag Test results are within the 1.5 second specification and engagement “feel” is judged
as acceptable, the procedure is complete.
If the Time Lag Test results are NOT within specification, perform the Learning Control Procedure
outlined in the applicable Service Manual.
•
After successful completion of the Learning Control Procedure, perform the Extra Learning
Control Procedure following the flow chart steps below. The following parameters must be
met before beginning:
○○ CVTF temperature is between 86-194 degrees F (30-90 degrees C)
○○ Brake pedal depressed
○○ Engine speed at 800 RPM with the A/C OFF
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.
Bulletin Number: 16-97-15 Date: 11/04/15
Continued...
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If the Neutral to Drive time lag is still determined to be excessive, either the Secondary (line)
pressure is too low, or a problem exists in the forward clutch or valve body assembly. Continue
testing following the Basic Diagnostic Procedure (CVT(diag)) outlined in the applicable Service
Manual.
If the Neutral to Reverse time lag is still determined to be excessive, either the Secondary (line)
pressure is too low, or a problem exists in the reverse brake clutch or valve body assembly. Continue
testing following the Basic Diagnostic Procedure (CVT(diag)) outlined in the applicable Service
Manual.
If the Time Lag Test results are now within the 1.5 second specification and the engagement feel after
shifting into Drive and Reverse is judged to be acceptable, the procedure is complete.
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
TIME LAG TEST, RESULTS WITHIN SPECIFICATION
A383-118
MFE-85
0.5
TIME LAG TEST WITH LEARNING CONTROL PROCEDURES
A383-228
MFF-42
1.0
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.
Bulletin Number: 16-97-15 Date: 11/04/15
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