Technical Service Bulletin (TSB)
Flash: Hybrid Control Module (HCP) and
Auxiliary Hybrid Control Module (AHCP) Updates
REFERENCE:

TSB: 08-200-24
GROUP: 08 - Electrical

Date:

September 11, 2024 REVISION: —

VEHICLES
AFFECTED:

2024 (MV) Jeep Compass
This bulletin applies to vehicles built on and after September 01,
2022 (MDH 0901XX) and on and before March 31, 2024 (MDH 0331XX)
equipped with the 1.3L I4 Turbo PHEV engine (Sales Code EYG).

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

CUSTOMER
SYMPTOM:

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must
exhibit/set the following Diagnostic Trouble Code (DTC):
● P0C74 - Motor Electronics Coolant Pump "B" Control Performance.

CAUSE:

Module software updates

This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 24-127,
date of issue September 11, 2024. All applicable 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.
REPAIR SUMMARY:
This bulletin involves reprogramming the HCP and AHCP also known as Power Inverter Module (PIM), with
the latest available software.
CLAIMS DATA:

Labor Operation No:
18-19-86-98

18-19-86-97

Failure Code

Labor Description
Hybrid Control Processor
and Auxiliary Hybrid
Control Processor (HCP/
AHCP) - Inspect
(0 - Introduction)
Hybrid Control Processor
and Auxiliary Hybrid
Control Processor (HCP/
AHCP) - Inspect and
Reprogram
(0 - Introduction)
CC
RF

Skill Category
6 - Electrical and Body
Systems

Labor Time
0.2 Hrs.

6 - Electrical and Body
Systems

0.7 Hrs.

Customer Concern
Required Flash

M08 FSAR-RSU-4441

-2-

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 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 customers VIN is listed in VIP or your RSU VIN list, perform the repair. If any vehicle not on the VIN list
exhibits any of the symptom listed above in the customer symptom section, perform the Repair Procedure.
This RSU only applies to vehicles on the RSU VIN list.
SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent

Ref. No.
–

Notes
–

REPAIR PROCEDURE:
WARNING!
The vehicle must not be connected to a high voltage charger when performing software updates.
NOTE: Install a battery charger to ensure sufficient battery voltage is provided during the flash
process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
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).
1. Is the vehicle on the RSU VIN list?
● YES >>> Proceed to Step 2.
● NO >>> Proceed to Step 3.

-3-

M08 FSAR-RSU-4441

2. Does the PCM have the latest software already installed?

3.

4.

5.
6.

● YES >>> This bulletin has been completed, use Inspect LOP (18-19-86-98) to close the active RSU.
● NO >>> Proceed to Step 3.
Reprogram the AHCP with the latest 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.
Reprogram the HCP with the latest 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.
Using wiTECH, perform a "PROXI Alignment Procedure". This routine is available under the ’Vehicle
Preparations’ tab of wiTECH.
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.
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.