Flash: Transmission Control Module (TCM) Updates (21-031-20)

WARNING: This page is about the 300 Limited, 4WD, Gas, which is a different variant/trim than selected.

Publication date: 2020-04-07
Reference number: 21-031-20
Supersedes refnos: 21-010-19

FLASH: TRANSMISSION CONTROL MODULE (TCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 21-031-20, Date of Issue: April 07, 2020

CHRYSLER:	2019 Chrysler 300 (LX)
GROUP:	21 - Transmission and Transfer Case

Superceded Bulletin(s): 21-010-19, Date of Issue: March 01, 2019

NOTE: This bulletin supersedes Service Bulletin 21-010-19, dated March 1, 2019, which should be removed from your files. All revisions are highlighted with **asterisks** and include converting to an RRT.
This Service Bulletin is also being released as Rapid Response Transmittal (RRT) 20-026, dated April 07, 2020. All applicable Un-Sold RRT VINs have been loaded. To verify this RRT service action is applicable to the Un-Sold vehicle, use VIP or perform a VIN search in DealerCONNECT/Service Library.

OVERVIEW

This bulletin involves reprogramming the TCM with the latest available software.

MODELS

MODELS CHART

2019

(LX)

Chrysler 300

NOTE: This bulletin applies to vehicles within the following markets/countries: North America, LATAM, EMEA and APAC.

NOTE: This bulletin applies to vehicles built on of before January 25, 2019 (MDH 0125XX) equipped with an 3.6L V6 24V VVT Engine (Sales Code ERB) and an 8-SPD Auto 850RE Transmission (Sales Code DFT).

SYMPTOM/CONDITION

Customers may describe the following:

After a cold start (in rare instances), the vehicle can be shifted into drive and the vehicle will not move. Shifting to park and back to drive rectifies the situation.

DIAGNOSIS

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerCONNECT/Service Library, verify all related systems are functioning as designed. If Diagnostic Trouble Codes (DTCs) or symptom conditions, other than the ones listed are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.

**If a customer's VIN is listed in VIP or your RRT VIN list, perform the repair. If any vehicle not on the VIN list exhibits the symptom/condition or DTCs, perform the repair.**

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.

NOTE: Do not clear the shift adaptive's in the TCM memory. This action may cause the transmission to not shift smoothly until the adaptive's are re-learned.

**Does the TCM control module have the latest software already installed?
- YES>>> This bulletin has been completed, use inspect LOP (18-19-05-ZJ) to close the active RRT.
- NO>>> Proceed to Step 2 .**
Reprogram the TCM with the latest available software. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the application's "HELP" tab.
Clear any DTCs that may have been set in any modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
**18-19-05-ZJ	Module, Transmission Control (TCM) - Inspect (0 - Introduction)	2 - Automatic Transmission	0.2 Hrs.**
18-19-05-LE	Module, Transmission Control (TCM) - Inspect and Reprogram (0 - Introduction)	2 - Automatic Transmission	0.3 Hrs.

NOTE: The expected completion time for the flash download portion of this procedure is approximately 4 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.

FAILURE CODE

**The dealer must choose which failure code to use depending on if this is a Rapid Response Transmittal (RRT) or Service Bulletin.

The "RF" failure code is required for essential module flash/reprogramming and can only be used after confirmation that the VIN is included on the RRT.
The failure code "RF" (Required Flash) can no longer be used on Service Bulletin flashes. The "RF" failure code must be used on an RRT .
If the customer's concern matches the SYMPTOM/CONDITION identified in the Service Bulletin, failure code CC is to be used. When utilizing this failure code, the 3C's must be supplied.

FAILURE CODE CHART

RF	Required Flash - RRT
CC	Customer Concern**