Flash: Transmission Control Module (TCM) Updates (21-017-22)
WARNING: This page is about the 300 Limited, 4WD, Gas, which is a different variant/trim than selected.
Publication date: 2022-05-14Reference number: 21-017-22
FLASH: TRANSMISSION CONTROL MODULE (TCM) UPDATES
TECHNICAL SERVICE BULLETIN
Reference Number(s): 21-017-22, Date of Issue:
May 14, 2022
| CHRYSLER: | 2020 (LX) Chrysler 300 |
| GROUP: | 21 - Transmission and Transfer Case |
OVERVIEW
This bulletin involves reprogramming the TCM with the latest available software.
MODELS
MODELS CHART
| 2020 | (LX) | Chrysler 300 |
NOTE:
This bulletin applies to vehicles within the following markets/countries: North America, APAC, EMEA and LATAM.
NOTE:
This bulletin applies to vehicles equipped with 3.6L V6 24V VVT Engine (Sales Code ERB) and an 8-Spd Auto 850RE Transmission (Sales Code DFT).
SYMPTOM/CONDITION
Customer may experience the following:
- Clunk noise from transmission (underneath) when remote started.
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 above are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.
If the customer describes the symptom/condition listed above perform the Repair Procedure.
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.
- Reprogram the TCM with the latest software. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the application's "HELP" tab.
- Clear any Diagnostic Trouble Codes (DTC)s 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-RA | Module, Transmission Control (TCM) - Reprogram (0 - Introduction) | 2 - Auto Transmission | 0.3 Hrs. |
NOTE:
The expected completion time for the flash download portion of this procedure is approximately 11 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.
FAILURE CODE
The dealer must use failure code CC with this Technical Service Bulletin.
- If the customer's concern matches the SYMPTOM/CONDITION identified in the Technical Service Bulletin, failure code CC is to be used.
- When utilizing this failure code, the 3C's (customer's concern, cause and correction) must be provided for processing Technical Service Bulletin flash/reprogramming conditions.
FAILURE CODE CHART
| CC | Customer Concern |