Flash: Powertrain Control Module (Pcm) Updates (18-085-22 REV. A)

WARNING: This page is about the Compass 80th Anniversary Edition, 4WD, which is a different variant/trim than selected.

Publication date: 2022-05-19
Reference number: 18-085-22 REV. A
Supersedes refnos: 18-085-22

FLASH: POWERTRAIN CONTROL MODULE (PCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-085-22 REV. A, Date of Issue: May 19, 2022

CHRYSLER:	2021 (MP) Jeep Compass
GROUP:	18 - Vehicle Performance

Superceded Bulletin(s): 18-085-22, Date of Issue: April 27, 2022

NOTE: 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.

NOTE: This bulletin supersedes Technical Service Bulletin (TSB) 18-085-22, date of issue April 27, 2022, which should be removed from your files. All revisions are highlighted with **asterisks** and include additional markets, Diagnostic Trouble Code (DTC) and LOP.

OVERVIEW

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

MODELS

MODELS CHART

2021

(MP)

Jeep Compass

NOTE: This bulletin applies to vehicles within the following markets/countries: **North America, APAC, LATAM** and EMEA.

NOTE: This bulletin applies to vehicles equipped with a 2.4L I4 Engine (Sales Codes EDD, EDE and ED6).

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:

**P0031 - O2 Sensor 1/1 Heater Circuit Low.**
U0418-00 - Implausible Data Received From Brake System Control Module 1.

Customers may experience the following:

Long engine cranking prior to vehicle start more noticeable when the outside temperature is above 40°c (104°f).

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 are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.

If the customer describes the symptom/condition listed above or if the technician finds the DTC, perform the Repair Procedure.

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.

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.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
**18-19-06-G8	Module, Powertrain Control (PCM) - 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 use failure code CC with this Technical Service Bulletin.

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 (customer's concern, cause and correction) must be provided for processing Technical Service Bulletin flash/reprogramming conditions.

FAILURE CODE CHART

CC	Customer Concern