0805023

Technical Service Bulletin (TSB)
Flash: Battery Pack Control Module (BPCM) Diagnostic and
System Updates
REFERENCE:
TSB: 08-050-23
GROUP 08 - Electrical
VEHICLES
AFFECTED:
2022 (JL) Jeep Wrangler
This bulletin applies to vehicles built on or before **August 08, 2022
(MDH 0808XX)** equipped with the 2.0L I4 DOHC DI Turbo PHEV
Engine (Sales Code ECX).
Date:
February 10,
2023
REVISION: 08-146-22
MARKET APPLICABILITY:
HNA
HIAP
HEE
HMEA
□SA
HCH
CUSTOMER
SYMPTOM:
Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV
battery:
• P1A21-00 - HV Battery Contactor Control Sequence Incorrect.
• P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High.
• P0607-00 - ECU Internal Performance.
• P1E1B-00 - Hybrid/EV Battery Side Voltage System Isolation.
• P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed.
CAUSE:
BPCM software
This bulletin supersedes Technical Service Bulletin (TSB) 08-146-22, date of issue August 03, 2022, which
should be removed from your files. All revisions are highlighted with **asterisks** and include converting
to an Rapid Service Update (RSU) number, build date, steps and LOP.
**This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 23-039,
date of issue February 10, 2023. All applicable Sold and UnSold 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 updating the BPCM with the latest available software.
NOTE: Additional module flashes are required for this update to be effective, the following modules
are all to be updated along with this BPCM update:
•
•
•
•
•
Powertrain Control Module (PCM).
Integrated Dual Charging Module (IDCM).
Transmission Control Module (TCM).
Battery Pack Control Module (BPCM).
Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the
Power Inverter Module (PIM).
CLAIMS DATA:
Labor Operation No:
Labor Description
Skill Category
Labor Time
**18-19-87-9V
Battery Pack Control
Module (BPCM), Inspect
(0 - Introduction)
6 - Electrical and Body
Systems
0.2 Hrs.
18-19-87-9W
Battery Pack Control
Module (BPCM), Inspect
and Reprogram
(0 - Introduction)
6 - Electrical and Body
Systems
0.3 Hrs.**
08-050-23
-2-
Labor Operation No:
Labor Description
Skill Category
Labor Time
Failure code
RF
Required Flash
CC
Customer Concern
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 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 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 the DTCs, perform the repair.
SPECIAL TOOLS/EQUIPMENT:
Description
Ref. No.
Notes
wiTECH or Equivalent
–
–
REPAIR PROCEDURE:
NOTE: The IDCM, PCM, HCP / AHCP and 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 IDCM, PCM,
HCP / AHCP and TCM software.
WARNING! Failure to update the IDCM, PCM, HCP / AHCP and TCM module following an BCPM
software update may result in vehicle malfunctions.
CAUTION!
• Before performing the software reprogramming, it is necessary to make the vehicle safe.
• When performing repairs that directly involve or imply possible contact with live high voltage
components/systems, the technician must ensure that the power supply of the high-voltage
system is disconnected throughout the operation.
• Only specifically trained technicians qualified to perform repairs on vehicles with high voltage
systems under current national laws/regulations are authorized to work on the vehicle.
• Before performing any diagnostic repair work on the vehicle, carefully read and comply with the
general instructions for working safely on hybrid/electric vehicles and use suitable general
equipment and Personal Protective Equipment (PPE).
NOTE: Install a battery charger to maintain a 12 volt system voltage.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
-3-
08-050-23
1. **Is the vehicle on the RSU VIN list?
• YES >>> Proceed to Step 2.
• NO >>> Proceed to Step 3.
2. Does the BPCM have the latest software already installed?
• YES >>> This bulletin has been completed, use inspect LOP (18-90-16-9V) to close the active RSU.
• NO >>> Proceed to Step 3.
3. Reprogram the BPCM with the latest software. Detailed instructions for flashing control modules using
the wiTECH Diagnostic Application are available by selecting the application ”HELP” tab.
4. 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.
5. Verify the IDCM, PCM, HCP / AHCP and TCM are also programmed with the latest available software.
Refer to all applicable published service bulletins for detailed repair procedures and labor times
regarding updating the IDCM, PCM, HCP / AHCP and TCM software.**
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.