Flash: Transmission Control Module (TCM) Updates (21-027-19)

WARNING: This page is about the Renegade Altitude, 1.4L Eng VIN H, 4WD, which is a different variant/trim than selected.

Publication date: 2019-05-11
Reference number: 21-027-19

FLASH: TRANSMISSION CONTROL MODULE (TCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 21-027-19, Date of Issue: May 11, 2019

CHRYSLER:	2018 Jeep Renegade (BU)
GROUP:	21 - Transmission and Transfer Case

SUBJECT

Flash: Transmission Control Module (TCM) Updates

OVERVIEW

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

MODELS

MODELS CHART

2018

(BU)

Jeep Renegade

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

NOTE: This bulletin applies to vehicles equipped with a 2.4L I4 Multiair Engine (Sales Code ED6 and ED8) and a 9-SPD 948TE Auto Trans (Sales Code DFH).

SYMPTOM/CONDITION

Customers may experience the following:

Malfunction Indicator Lamp (MIL) illumination, Electronic Vehicle Information Center (EVIC) message states "Service Transmission" and transmission intermittently goes into neutral with PRNDL flashing when vehicle is stopped. The vehicle may or may not resume normal transmission operation after cycling the shifter or ignition.

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 DTCs or symptom conditions, other than the one 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: The Powertrain Control Module (PCM) must be updated to the latest available software at the conclusion of this repair procedure. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding updating the PCM software.

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 DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allows them to be cleared.
Verify the PCM is programmed with the latest available software. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding updating the PCM software.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
18-19-05-LL	Module, Transmission Control (TCM) - Reprogram (0 - Introduction)	2 - Automatic Transmission	0.2 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