NUMBER:
GROUP:
DATE:

21-016-14
Transmission and
Transfer Case
April 30, 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.

HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 14.03 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Transmission Shift Enhancements
OVERVIEW:
This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with
new software.
MODELS:
2014

DS

Ram 1500

NOTE: This bulletin applies to vehicles built before January 27, 2014 (MDH 0127XX)
equipped with a 3.6L engine (Sales Codes ERB) equipped with the 845RE
8-Speed automatic transmission (Sales Code DFL).
SYMPTOM/CONDITION:
The customer may indicate that they may have experienced any of the following:
•
•

4x4 Low Mode shift quality during a medium to heavy throttle
MIL Illumination for DTC P215C - OUTPUT SHAFT SPEED WHEEL SPEED
CORRELATION
In addition, calibration changes have been made in the following areas to improve:
• Powertrain braking while in Tow/Haul mode
• Downshift response from a medium to heavy pedal
• Drivability at high altitude
• Acceleration performance during cruise control operation
This calibration release also corrects a condition where DTC U11C3 may have been
displayed when DTC U11E3 should have been displayed resulting in a possible
misdiagnosis.
DIAGNOSIS:
If the customer describes the symptom, perform the Repair Procedure.

21-016-14

-2-

REPAIR PROCEDURE:
NOTE: Install a battery charger to ensure battery voltage does not drop below 13.2
volts. Do not allow the charging voltage to climb above 13.5 volts during the
flash process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
1. Using the wiTECH, reprogram the TCM with the latest software. Help using the
wiTECH diagnostic application for flashing an ECU is available by selecting “help” then
“help contents” at the top of the wiTECH diagnostic application window.
2. Clear any DTC's that may have been set in other modules due to reprogramming. The
wiTECH application will automatically present all DTCs after the flash and allow the
tech to clear them.
NOTE: Do not clear the adaptation memory cells in the TCM’s memory. This action
may cause the transmission to not shift smoothly until the adaptation
memory cells are re-learned.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:
18-19-05-9W

Description

Skill Category

Module, Transmission Control (TCM) - 2- Automatic
Reflash - (1 - Semi-Skilled)
Transmission

Amount
0.2 Hrs.

NOTE: The expected completion time for the flash download portion of this
procedure is approximately 3 minutes. Actual flash download times may be
effected by vehicle connection and network capabilities.
FAILURE CODE:
FM

Flash Module