NUMBER:
GROUP:
DATE:

18-086-22
18 - Vehicle Performance
April 28, 2022

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.

This bulletin supersedes Technical Service Bulletin (TSB) 18-040-21, date of issue April 27,
2021, which should be removed from your files. All revisions are highlighted with
**asterisks** and include additional Diagnostic Trouble Code (DTC), symptom/condition and
LOP.
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update
(RSU) 21-043, date of issue April 27, 2021. All applicable Sold and Un-Sold 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.
SUBJECT:
Flash: Powertrain Control Module (PCM) Updates
OVERVIEW:
This bulletin involves reprogramming the PCM with the latest available software.
MODELS:
2021

(RU)

Chrysler Pacifica

NOTE: This bulletin applies to vehicles within the following markets/countries: North
America.
NOTE: This bulletin applies to vehicles equipped with a 3.6L V6 24V VVT Engine Upg I
W/ESS (Sales Code ERC).
SYMPTOM/CONDITION:
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further
investigation, a technician may find one or more of the following DTCs have been set:
• **U0418-00 - Implausible Data Received From Brake System Control Module 1.**
• P061A - Level 2 Torque Performance.
**Customers may also experience the following:
• Transmission hard upshifts, rough/bump during low gear 1-2 and 2-3 at 40-64 kph (25-40
mph).**
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 the symptom/condition or DTC, perform the repair.

18-086-22

-2-

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. Is the vehicle on the active RSU VIN list?
• YES>>> Proceed to Step 2.
• NO>>> Proceed to Step 4.
2. Check the PCM software version to see if it is the latest available.
3. Is the PCM software at the latest available?
• YES>>> This bulletin has been completed, use inspect LOP (18-19-06-BU) to close the
active RSU.
• NO>>> Proceed to Step 4
4. 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.
5. Clear any DTCs that may have been set in any modules 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:
Labor Operation No:
18-19-06-BU

Description
Module, Powertrain Control (PCM) - Inspect
(0 - Introduction)

Skill Category
Amount
1 - Engine Repair and Per- 0.2 Hrs.
formance

**18-19-06-DD

Module, Powertrain Control (PCM) - Inspect and
Reprogram
(0 - Introduction)

1 - Engine Repair and Per- 0.3 Hrs.**
formance

NOTE: The expected completion time for the flash download portion of this procedure is
approximately 6 minutes. Actual flash download times may be affected by vehicle
connection and network capabilities.

-3-

18-086-22

FAILURE CODE:
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.
RF

Required Flash - RSU

CC

Customer Concern