NUMBER:

21-035-14 REV. A

GROUP:

Transmission and
Transfer Case

DATE:

November 08, 2014

This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of Chrysler Group LLC.

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 21-035-14, DATED NOVEMBER
1, 2014 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND IS BEING REVISED TO ADD THE UF 3.6L
ENGINE APPLICATION.
THE wiTECH SOFTWARE VERSION MUST BE AT 15.02.21 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
948TE 9 Speed Transmission Quick Learn Procedure
OVERVIEW:
This bulletin provides information on how to perform the new scan tool based transmission
Quick Learn procedure. This procedure is required after certain transmission repairs or to
improve a customer’s concern of poor shift quality.
MODELS:
2015

(KL)

Cherokee

2015

(UF)

200

NOTE: **This bulletin applies to the following vehicles:**
• **KL vehicles equipped with either a 3.2L engine (sales code EHB) or
2.4L engine (sales code ED6) and equipped with the 948TE 9 speed
transmission (sales code DFH) or (sales code DFJ).
• UF vehicles equipped with either a 2.4L engine (sales code ED6) or 3.6L
engine (sales code ERB) and equipped with the 948TE 9 speed
transmission (sales code DFH).**
SYMPTOM/CONDITION:
Customers may indicate that their transmission shift quality may be erratic.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available, verify
all vehicle systems are functioning correctly. If any DTCs are present, record them on the
repair order and repair as necessary before proceeding further with this bulletin.
If the above symptom/condition is present or if the transmission or valve body has been
repaired or replaced and adaptation memory cells were cleared, perform the Repair
Procedure

21-035-14 REV. A

-2-

SPECIAL TOOLS/EQUIPMENT REQUIRED:
NPN

wiTECH VCI Pod Kit

NPN

Laptop

REPAIR PROCEDURE:
NOTE: **A new software patch was released to wiTECH software version 15.02
which will update the scan tool to 15.02.21 patch 2. The scan tool must be
updated to this software version or higher in order to perform the
transmission Quick Learn.**
NOTE: Transmission Quick Learn must be performed anytime the transmission is
repaired/replaced and/or the Valve Body or TCU assembly is replaced. It
must also be performed when the adaptation memory cells are cleared with
the wiTECH diagnostic scan tool. Transmission Quick Learn is also one of
the first steps to improve a transmission shift quality concern on these
vehicles.
NOTE: If the Valve Body or TCU assembly is replaced, the VB/Solenoid Learn
procedure must be run.
1. Are there any active DTCs in the Transmission Control Module (TCM’s) memory?
a. YES>>> Using current published service information, diagnose and repair the
conditions that set the DTC(s) before proceeding with this bulletin.
b. NO>>> Proceed to Step #2.
NOTE: The Powertrain Control Module (PCM) and Transmission Control Module
(TCM) calibration files must be at the latest software level to perform this
procedure.
NOTE: All labor times and procedures for reprogramming of TCM and PCM covered
under other service actions
2. Using wiTECH, check the TCM calibration and see if it is up to date. Are there any
software updates available for the TCM?
a. Yes>>> Flash the TCM to the latest software level available referring to all currently
published applicable TCM flash Service Bulletins available in Service Information for
detailed repair procedures and labor times. Proceed to Step #3 .
b. No>>> Proceed to Step #3.
3. Using wiTECH, check the PCM calibration and see if it is up to date. Are there any
software updates available for the PCM?
a. Yes>>> Flash the PCM to the latest software level available. Refer to all currently
published applicable PCM flash Service Bulletins available in Service Information
for detailed repair procedures and labor times. Proceed to Step #4.
b. No>>> Proceed to Step #4.
4. Start the engine and monitor the transmission temperature on the Electronic Vehicle
Information Center (EVIC).

-3-

21-035-14 REV. A

5. With the vehicle located in a suitable area, allow the transmission to warm up to
minimum of 60°C (140°F) by performing the following steps:
a. Apply the service brake.
b. Shift Transmission from Park to Reverse.
c. Shift Transmission from Reverse to Drive.
d. Accelerate the vehicle to minimum of 45 mph to allow the transmission to cycle
through each gear.
e. Drive the vehicle until the transmission temperature reaches 60°C (140°F).
NOTE: If the vehicle is equipped with the start/stop feature (sales code XBU) it must
be disabled prior to performing this procedure. To disable, press the on/off
switch located on the center switch bank near the HVAC controls.
6. Connect wiTECH diagnostic scan too to the vehicle.
7. Check for TCM DTC (Diagnostic Trouble Codes). Do not perform the Quick Learn
procedure if TCM DTCs are present. Repair transmission as required.
8. Select the TCM module in wiTECH.
9. Select the “Misc Functions” tab.
NOTE: If the “Quick Learn” option does not appear on wiTECH and both the TCM
and PCM were just updated, restart the wiTECH application which should
now be populated with the “Quick Learn” option.
10. Select the “Quick Learn” procedure, and follow the on-screen instructions to reset and
learn the clutch adaptive values.
11. Shift the transmission into Park and shut off the engine. The procedure is now
complete.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:
18-19-05-S9

Description
948TE, Perform Transmission Quick Learn
Procedure. (Includes verifying TCM and
PCM software levels)
(1 - Semi Skilled)

FAILURE CODE:
ZZ

Service Action

Skill
Category

Amount

2- Automatic 0.4 Hrs.
Transmission