Flash: Powertrain Control Module (Pcm) Updates (18-069-23 REV. C)

Publication date: 2023-11-29
Reference number: 18-069-23 REV. C
Supersedes refnos: 18-069-23, 18-069-23 REV. A, 18-069-23 REV. B

FLASH: POWERTRAIN CONTROL MODULE (PCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-069-23 REV. C, Date of Issue: November 29, 2023

CHRYSLER:	2023 (MP) Jeep Compass
GROUP:	18 - Vehicle Performance

Superceded Bulletin(s): 18-069-23 REV. B, Date of Issue: September 28, 2023

VEHICLES AFFECTED

2023 (MP) Jeep Compass

This bulletin applies to vehicles equipped with a 2.0L I4 DOHC DI Turbo Engine W/ESS (Sales Code EC1).

CUSTOMER SYMPTOM

Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:

P219A - Bank 1 Air-Fuel Ratio Imbalance.

**The customer may also experience the following:

A/C auto stops in 4WD Terrain and Traction Modes.**

CAUSE

PCM Software

NOTE: This bulletin supersedes Technical Service Bulletin (TSB) 18-069-23 REV. B, date of issue September 28, 2023, which should be removed from your files. All revisions are highlighted with **asterisks** and include an additional customer symptom, new LOPs and new RSU number.
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) **23-328, date of issue November 29. 2023**. All applicable RSU VINs have been loaded. To verify this RSU service action is applicable to the vehicle, use VIP or perform a VIN search in DealerCONNECT/Service Library. All repairs are reimbursable within the provisions of warranty. This RSU will expire 18 months after the date of issue.

REPAIR SUMMARY

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

CLAIMS DATA

CLAIMS INFORMATION

Labor Operation No:	Labor Description	Skill Category	Labor Time
**18-19-06-F7	Module, Powertrain Control (PCM) - Inspect (0 - Introduction)	1 - Engine Repair and Performance	0.2 Hrs.
18-19-06-F8	Module, Powertrain Control (PCM) - Inspect and Reprogram (0 - Introduction)	1 - Engine Repair and Performance	0.4 Hrs.**
Failure Code	RF	Required Flash - RSU
Failure Code	CC	Customer Concern

NOTE: The dealer must choose which failure code to use depending on if this is a Rapid Service Update (RSU) or Technical 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 RSU.
The failure code "RF" (Required Flash) can no longer be used on Technical Service Bulletin flashes. The "RF" failure code must be used on an RSU.
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 must be supplied.

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 ones listed above 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 RSU VIN list, perform the repair. If any vehicle not on the VIN list exhibits any of the symptoms listed above in the customer symptom section, perform the Repair Procedure.

SPECIAL TOOLS/EQUIPMENT

SPECIAL TOOLS INFORMATION

Description	Ref. No.	Notes
wiTECH or Equivalent	-	-

REPAIR PROCEDURE

NOTE: The PCM and Transmission Control Module (TCM) must be updated to the latest available software at the conclusion of this repair procedure. Refer to all applicable published technical service bulletins for detailed repair procedures and labor times regarding updating the PCM and TCM 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.

Is the vehicle on the RSU VIN list?
- YES >>> Proceed to Step 2 .
- NO >>> Proceed to Step 3 .
Does the PCM control module have the latest software already installed?
- YES >>> This bulletin has been completed. Use inspect LOP (**18-19-06-F7**) to close the active RSU.
- NO >>> Proceed to Step 3 .
Reprogram the PCM 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.
Verify that Electronic Vehicle Information Center (EVIC) steering wheel switches are operational.
Do the EVIC steering wheel switches operate properly?
1. YES>>> Proceed to Step 9 .
2. NO>>> Proceed to Step 7 .
If the EVIC control switches on the steering wheel are inoperable, and/or a U1109 DTC is present in the Body Control Module (BCM) after performing the PCM flash, disconnect the main and auxiliary battery for two minutes then reconnect the battery. Refer to the detailed service procedures available in DealerCONNECT/Service Library under: Service Info> 08 - Electrical/8F - Engine Systems/Battery System/Standard Procedure.
Do the EVIC steering wheel switch controls operate properly?
1. YES>>> Proceed to Step 9 .
2. NO>>> If normal operation has not returned, continue with normal diagnostics for any current DTCs.
Did DTC P219A - Bank 1 Air-Fuel Ratio Imbalance return?
- YES >>> Normal diagnosis should be performed. This bulletin has been completed. Use LOP (**18-19-06-F8**) to close the active RSU.
- NO >>> No further action required.

POLICY

Reimbursable within the provisions of the warranty.

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 FCA US LLC.