Flash: Powertrain Control Module (Pcm) Updates (18-105-22)

WARNING: This page is about the Pacifica Hybrid Limited, which is a different variant/trim than selected.

Publication date: 2022-05-28
Reference number: 18-105-22
Supersedes refnos: 18-004-21

FLASH: POWERTRAIN CONTROL MODULE (PCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-105-22, Date of Issue: May 28, 2022

CHRYSLER:	2019 (RU) Chrysler Pacifica (PHEV)
GROUP:	18 - Vehicle Performance

Superceded Bulletin(s): 18-004-21, Date of Issue: January 16, 2021

NOTE: This bulletin supersedes Technical Service Bulletin (TSB) 18-004-21, date of issue January 16, 2021, which should be removed from your files. All revisions are highlighted with **asterisks** and include additional Diagnostic Trouble Codes (DTCs) and LOP.
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 21-014, date of issue January 16, 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.

OVERVIEW

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

MODELS

MODELS CHART

2019

(RU)

Chrysler Pacifica (PHEV)

NOTE: This bulletin applies to vehicles within the following markets/countries: North America and APAC (China).

NOTE: This bulletin applies to vehicles equipped with a 3.6L V6 PHEV Hybrid Engine (Sales Code EH3).

SYMPTOM/CONDITION

**Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs.

P0A2D-00 - Drive Motor "A" Temperature Sensor "A" Circuit High.
P0A33-00 - Drive Motor B Temperature Sensor 1 Circuit High.**

Technicians and/or customers may also report the vehicle will not pass a state smog check due to permanent fault codes which will not clear. As a result, the vehicles are not eligible to be registered in certain states.

Customers may also experience:

Noise or vibration heard/felt during a gas engine start in park.

This software release includes the following software enhancement:

Corrections to allow the vehicle to clear the permanent fault codes.

NOTE: Four modules are required to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:

Electronic Brake Booster Module (EBBM).
Anti-Lock Brake System Module (ABS).
Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).

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 symptom/condition or finds permanent fault codes stored, perform the repair.

REPAIR PROCEDURE

NOTE: The Electronic Brake Booster Module (EBBM), Anti-Lock Brake System Module (ABS), Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) 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 HCP, AHCP, ABS and EBBM software.

WARNING: Failure to update all modules following an PCM software update may result in vehicle malfunctions.

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.

Does the PCM control module have the latest software already installed?
- YES>>> This bulletin has been completed, use inspect LOP (18-19-06-DQ) to close the active RSU.
- NO>>> Proceed to Step 2 .
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 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.
Verify the HCP, AHCP. ABS and EBBM 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 HCP, AHCP, ABS and EBBM software.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
18-19-06-DQ	Module, Powertrain Control (PCM) - Inspect (0 - Introduction)	1-Engine Repair and Performance	0.2 Hrs.
**18-19-06-FE	Module, Powertrain Control (PCM) - Inspect and Reprogram (0 - Introduction)	1-Engine Repair and Performance	0.3 Hrs.**

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.

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.

FAILURE CODE CHART

RF	Required Flash - RSU
CC	Customer Concern