Flash: Ignition System Control Module (ISCM) Updates P2C30-00, P2C31-00 (08-221-24)

Publication date: 2024-10-11
Reference number: 08-221-24

FLASH: IGNITION SYSTEM CONTROL MODULE (ISCM) UPDATES P2C30-00, P2C31-00

TECHNICAL SERVICE BULLETIN

Reference Number(s): 08-221-24, Date of Issue: October 11, 2024

CHRYSLER:	2023 (WS) Grand Wagoneer/Wagoneer
GROUP:	08 - Electrical

VEHICLES AFFECTED

2023 (WS) Grand Wagoneer/Wagoneer

This bulletin applies to vehicles equipped with a 3.0L I6 Hurricane SO Twin Turbo ESS (Sales Code EFH).

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):

P2C30-00 - Ignition Coil Primary Circuit Fuse A.
P2C31-00 - Ignition Coil Primary Circuit Fuse B.

Customers may also comment on the following:

Engine hesitates/misfires.

CAUSE

ISCM Software

NOTE: This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 24-147, date of issue October 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 ISCM with the latest available software.

CLAIMS DATA

CLAIMS INFORMATION

Labor Operation No:	Labor Description	Skill Category	Labor Time
18-19-33-92	Module, Ignition System Control (ISCM) - Inspect Software Level (0 - Introduction)	1 - Engine Repair And Performance	0.2 Hrs.
18-19-33-93	Module, Ignition System Control (ISCM) - Inspect and Reprogram (0 - Introduction)	1 - Engine Repair And Performance	0.3 Hrs.
Failure code	RF	Required Flash - RSU
Failure code	CC	Customer Concern

The dealer must use failure code CC with this 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 customer's 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.

SPECIAL TOOLS/EQUIPMENT

SPECIAL TOOLS INFORMATION

Description	Ref. No.	Notes
wiTECH or Equivalent	-	-

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.

Is the vehicle on the RSU VIN list?
- YES >>> Proceed to Step 2 .
- NO >>> Proceed to Step 3 .
Does the ISCM have the latest software already installed?
- YES >>> This bulletin has been completed, use Inspect LOP (18-19-33-92) to close the active RSU.
- NO >>> Proceed to Step 3 .
Reprogram the ISCM 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.
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.

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.