Technical Service Bulletin (TSB)
Flash: Central ADAS Decision Module (CADM) Updates
REFERENCE:

TSB: 08-021-26
GROUP: 08 - Electrical

Date:

January 28, 2026

VEHICLES
AFFECTED:

2025 (D2) RAM 3500 Pickup
2025 (DD) RAM 3500 Cab Chassis
2025 (DP) RAM 4500 / 5500 Cab Chassis
2025 (DJ) RAM 2500 Pickup
This bulletin applies to vehicles equipped with Full Speed Fwd
Collision Warn Plus (Sales Code LSU).

REVISION: ––

MARKET APPLICABILITY:
NA

MEA

SA

IAP

EE

CH

This bulletin applies to North
and South America, Enlarged
Europe, Middle East & Africa
and India & Asia Pacific
markets.

CUSTOMER
SYMPTOM:

Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must
exhibit/set at least one of the following Diagnostic Trouble Codes (DTCs):
● C2203-00 - Current VIN Missing/Mismatch.
● C008E-00 - ECU Internal Performance with Environmental Data Decode Byte:
APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT.
Customers may also comment on one or more of the following:
● The Instrument Panel Cluster (IPC) is displaying one or more of the following messages:
○ "ACC/FCW Unavailable Service Required".
○ "ACC/FCW Limited Functionality".
○ "Active Lane Management Limited Functionality."
○ "Active Lane Management Unavailable Service Required".
○ "Automatic Emergency Braking (AEB) Limited Service Required".
○ "AEB Unavailable Service Required".
○ "Blindspot Detection Unavailable Service Required"
○ "Blindspot Detection Limited Functionality"
● Customer states that the ADAS features are disabled.

CAUSE:

CADM software

REPAIR SUMMARY:
This bulletin involves reprogramming of the CADM with the latest available software and possibly performing a
Forward Facing Camera (FFC) Dynamic Service Alignment / Calibration procedure.

J08 FSAR-TSB-6774

-2-

CLAIMS DATA:

Labor Operation No:
18-19-41-9R

Failure Code

Labor Description
Central ADAS Decision
Module (CADM) Reprogram
(0 - Introduction)
CC

Skill Category
6 - Electrical and Body
Systems

Labor Time
0.3 Hrs.

Customer Concern

The dealer must use failure code CC with this Technical Service Bulletin.
● If the customer’s concern matches the SYMPTOM 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.
RELATED LOP(S):

Labor Operation No:
18-19-41-51

Labor Description
Skill Category
Perform Forward Facing 6 - Electrical and Body
Camera Dynamic Service Systems
Alignment/Calibration
(0 - Introduction)

Labor Time
0.3 Hrs.

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 the customer describes any of the symptoms listed above and DTC C2203-00 - Current VIN Missing/
Mismatch is present proceed to the Repair Procedure.
If the customer describes any of the symptoms listed above and C008E-00 - ECU Internal Performance DTC
is present, this requires additional steps for proper diagnosis.
Please reference the additional diagnosis steps below on how to view the Environmental Data. The
Environmental Data is needed to confirm the APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT
decode byte as shown in the Fig. 1.

Fig. 1
CADM DTC Environmenal Data View

-3-

J08 FSAR-TSB-6774

1.
2.
3.
4.
5.

Using the wiTECH, select "ECU List" under Vehicle.
Select "CADM - Central ADAS Decision Module".
Select "DTCs".
View the CADM DTC "C008E-00 - ECU Internal Performance".
Hover over the CADM DTC "C008E-00 - ECU Internal Performance" and then select it to view the DTC's
environmental data.
6. Confirm that Internal DTC Decode Byte "APP_FATAL_ERROR_APP_CONFIGURATION_ERROR_FAULT"
is present then proceed to the Repair Procedure.
SPECIAL TOOLS/EQUIPMENT:

Description
wiTECH or Equivalent

Ref. No.
–

Notes
–

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.
NOTE: Replacement of the CADM or the LRCF is NOT necessary for these conditions.
1. Reprogram the CADM 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.
2. Using the wiTECH, reset the CADM module. The reset procedure can be found in Guided Diagnostics >
Reset ECU > CADM.
3. Is DTC "C008E-00 - ECU Internal Performance" set?
● YES>>> Proceed to Step 4.
● NO>>> Proceed to Step 5.
4. Perform the Forward Facing Camera Dynamic Service Alignment / Calibration procedure. Refer to the
detailed service procedures available in DealerCONNECT/Service Library under: Service Info> 08 Electrical / 8B - Driver Assistance / Programming and Calibration.
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.
NOTE: For SA market only, after applying this TSB, it is not necessary to send DID-1 or DID-A.
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.