NHTSA ID Number: 11001133
Manufacturer Communication Number: 18-044-24
TSB/Document Date: 2024-06-06
Summary
"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P1129 - closed loop fueling not achieved - Bank 2 Upstream. ● P0158 - O2 Sensor 2/2 circuit high. ● P0152 - O2 Sensor 2/1 circuit high. ● P2504 - Charging system output high. ● P0563 - Battery/system voltage high. Customers may also experience the following: ● The engine runs rough. This bulletin involves reprogramming the PCM with the latest available software."
Technical Service Bulletin (TSB)
Flash: Powertrain Control Module (PCM) Updates
REFERENCE:
TSB: 18-044-24
GROUP: 18 - Vehicle Performance
Date:
May 3, 2024
REVISION: ––
VEHICLES
AFFECTED:
2024 (JT) Jeep
Gladiator
MARKET APPLICABILITY:
This bulletin applies to vehicles built on or before February 01, 2024
MEA
NA
(MDH 0201XX) equipped with the 3.6L V6 VVT Engine Upgrade 1 (Sales
SA
IAP
Code ERC).
EE
CH
CUSTOMER
SYMPTOM:
Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must
exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
● P1129 - closed loop fueling not achieved - Bank 2 Upstream.
● P0158 - O2 Sensor 2/2 circuit high.
● P0152 - O2 Sensor 2/1 circuit high.
● P2504 - Charging system output high.
● P0563 - Battery/system voltage high.
Customers may also experience the following:
● The engine runs rough.
CAUSE:
PCM software
REPAIR SUMMARY:
This bulletin involves reprogramming the PCM with the latest available software.
CLAIMS DATA:
Labor Operation No:
18-19-06-HX
Failure code
Labor Description
Module, Powertrain
Control (PCM) Reprogram
(0 - Introduction)
CC
Skill Category
1 - Engine Repair and
Performance
Labor Time
0.3 Hrs.
Customer Concern
The dealer must use failure code CC with this Technical Service Bulletin.
● If the customer’s concern matches the SYMPTOM 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.
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.
SPECIAL TOOLS/EQUIPMENT:
Description
wiTECH or Equivalent
Ref. No.
–
Notes
–
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.
1. Reprogram the PCM with the latest available software. If issues arise when flashing a module using the
wiTECH Diagnostic Application, please submit a ticket to the Helpdesk. The helpdesk can be found within
the Help menu.
2. 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.
3. Using wiTECH, perform the “Cam Crank Relearn” routine. This routine can be found in the PCM “Misc
Functions” tab.
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.
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TSB/Document ID: 18-044-24
Replacement Service Bulletin Number:
MFR Communication Date: 2024-05-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System: Powertrain Control Module
MFR Component Subsystem:
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