Service bulletin 0823723

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10248920
Published by NHTSA	2024-01-16
Manufacturer's number	0823723
Manufacturer's date	2023-11-02
NHTSA component	WHEELS; AIR BAGS; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING; STRUCTURE; ELECTRICAL SYSTEM; EXTERIOR LIGHTING

NHTSA's summary

Transfer Case Shift Motor Wire Harness Connector Not Secured Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? U0418-00 - Implausible Data Received From Brake System Control Module. ? C1444-98 - T-Case Motor Overuse-Component or System Over Temperature. ? C00A8-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open. ? C00A7-13 - 4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open. ? C149E-64 - Transfer Case Motor Position Sensor-Signal Plausibility Failure. ? C1423-64 - Transfer Case Internal Performance-Signal Plausibility Failure. ? C1406-13 - Transfer Case Brake Control-Circuit Open. ? C1477-4B - Transfer Case Clutch-Over Temperature. ? C140A-13 - Transfer Case Motor Control-Circuit Open. ? U041E-00 - Invalid Data Received From All Wheel Drive Control Module. ? U0422-00 - Implausible Data Received From Body Control Module. ? U0418-00 - Implausible Data Received From Brake System Control Module 1. ? U041E-00 - Invalid Data Received Form All Wheel Drive Control Module. ? U0403-00 - Implausible Data Received From T-Case. The customer may also comment on the following: ? 4WD Service light displayed in the Instrument Panel Cluster (IPC). This bulletin involves performing a push?pull?push test on the transfer case shift motor wire harness connector.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Air bags, Body and frame, Driver assistance, Electrical system, Engine, Lighting, Wheels, Backup camera

Trouble codes named

C00A7, C00A8, C1406, C140A, C1423, C1444, C1477, C149E, U0403, U0418, U041E, U0422

Vehicles listed
RAM 1500	2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V654000	2023-09-28. BACK OVER PREVENTION:DISPLAY FUNCTION
23V059000	2023-02-09. BACK OVER PREVENTION:DISPLAY FUNCTION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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