Flash: Transmission Control Module (TCM) Updates (21-015-21)

Publication date: 2021-04-01
Reference number: 21-015-21

FLASH: TRANSMISSION CONTROL MODULE (TCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 21-015-21, Date of Issue: April 01, 2021

CHRYSLER:	2021 RAM ProMaster City (VM)
GROUP:	21 - Transmission and Transfer Case

OVERVIEW

This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software.

MODELS

MODELS CHART

2021

(VM)

RAM ProMaster City

NOTE: This bulletin applies to vehicles within the following markets/countries: North America.

NOTE: This bulletin applies to vehicles on or before January 13, 2021 (MDH 0113XX) equipped with a 2.4L I4 Multiair Engine (Sales Code ED6) and a 9SPD 948TE FWD Automatic Transmission (Sales Code DFH).

SYMPTOM/CONDITION

The following enhancement is included in this software update:

Scan tool enhancement to address the 'Valve Body Solenoid Learn Routine' not running and the error message stating 'Parking brake not applied', even though it is applied.

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 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.

NOTE: Do not clear the shift adaptives in the TCM's memory. This action may cause the transmission to not shift smoothly until the adaptives are relearned.

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 all DTCs that may have been set in any module 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-PZ	Module, Transmission Control (TCM) - Reprogram (0 - Introduction)	2 - Automatic Transmission	0.3 Hrs.

NOTE: The expected completion time for the flash download portion of this procedure is approximately 5 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 Service Bulletin.

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 (customer's concern, cause and correction) must be provided for processing Service Bulletin flash/reprogramming conditions.

FAILURE CODE CHART

CC	Customer Concern