C1444 on 2019-2025 Ram 1500: Transfer Case Motor Overuse Fixes

What's Unique About the 2019-2025 Ram 1500

On the 5th generation Ram 1500 (DT), this code is a well-documented issue. Ram has released multiple Technical Service Bulletins (TSBs) that guide technicians to check software and replace the transfer case shift motor, rather than immediately suspecting driver error or a more severe mechanical failure within the transfer case itself. One TSB specifically warns against replacing the entire transfer case assembly before investigating the motor, which can save owners significant expense.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• "Service 4WD" light illuminated on the dashboard.
🎬 See how to troubleshoot a flashing 4WD light at home.
• Malfunction Indicator Lamp (Check Engine Light) is on.
• Inability to shift into or out of 4WD modes (2WD, 4-High, 4-Low).
• Flashing 4WD indicator lights that never go solid.
• Grinding or clicking noises from underneath the truck when attempting to shift 4WD modes.
• A binding or wheel-hopping sensation during sharp turns, indicating the 4WD system may be engaged when it shouldn't be.

Most Likely Causes

1. Faulty Transfer Case Shift Motor 🔴 High Probability This is a known issue acknowledged by the manufacturer in TSBs #21-048-24 and #9100409. The internal components of the motor can fail, causing it to overheat or stop functioning.
   How to confirm: After ruling out software and wiring, the motor is the prime suspect. A technician can use a scan tool to command shifts; if the motor fails to respond or makes grinding noises, it has failed. Owners often report that replacing the motor is the final fix after software updates fail to resolve the issue.
   Typical fix: Replace the transfer case shift motor. 🎬 Watch: This step-by-step guide shows you how to replace the motor.
   Est. part cost: $220-$400
2. Outdated Drivetrain Control Module (DTCM) Software 🟡 Medium Probability Manufacturer TSBs often include software updates to revise the parameters for monitoring the shift motor, preventing false overheating codes or improving shift logic. Dealerships will almost always perform this step first before authorizing a hardware replacement.
   How to confirm: A dealership or qualified shop with access to Mopar's diagnostic software (wiTECH) can check the current software version against the latest available updates by VIN.
   Typical fix: Update the DTCM software to the latest version.
   Est. part cost: $0-$200
3. Shift Motor Wiring Harness Connector Not Fully Seated ⚪ Low Probability TSB #08-237-23 specifically calls out a batch of 2023 models built between June 16, 2023, and June 24, 2023, where the shift motor connector may not have been fully seated from the factory, causing a poor connection and a host of related codes, including C1444.
   How to confirm: Visually inspect and perform a "push-pull-push" test on the transfer case shift motor's main electrical connector to ensure it is securely latched, as detailed in TSB #08-237-23.
   Typical fix: Securely seat the connector. If the locking tab is broken, the connector may need to be replaced.
   Est. part cost: $0-$50

Rare But Worth Checking

• Internal Transfer Case Mechanical Failure: While rare, if the transfer case has internal binding or damage, it can put an excessive load on the shift motor, causing it to overheat and trigger C1444. This is usually accompanied by severe grinding noises or a complete inability to drive. A full transfer case replacement can cost between $2,000 and $4,000.

Diagnosis Steps

1. Connect a professional scan tool (like AlfaOBD or wiTECH) and confirm the presence of C1444-98. Note any other codes, especially those listed in the 'Often Seen With' section.
2. Check for applicable TSBs using the vehicle's VIN. Specifically look for TSBs #21-048-24, #9100409, and #08-237-23.
3. If TSB #08-237-23 applies (for specific 2023 models), or as a general good practice, raise the vehicle and inspect the transfer case shift motor's electrical connector. Ensure it is clean, free of corrosion, and securely latched by performing a push-pull-push test.
4. Have a dealer or qualified shop check if the Drivetrain Control Module (DTCM) software is up to date. If not, perform the update. This is a common first step for dealers.
5. If the code returns after a software update and wiring check, the transfer case shift motor is the most likely cause of failure.
6. Replace the transfer case shift motor. This involves unbolting the old motor from the side of the transfer case and installing the new one. 🎬 Watch this helpful walkthrough of the shift motor installation process. The transfer case may need to be put into a neutral state via a scan tool or manual procedure before removal.
7. After replacement, clear all DTCs and use the scan tool to command the transfer case through all ranges (2WD, 4H, 4L) to verify the repair is successful.

Parts You'll Likely Need

• Transfer Case Shift Motor (OEM #68450803AA) — This is the component identified in manufacturer TSBs as the primary failure point for code C1444.
  Trusted brands: Mopar, Dorman
  OEM price range: $220-$325
  Aftermarket price range: $120-$260

Related Codes That Often Appear With This One

• C1477-4B — This code for "Transfer Case Clutch-Over Temperature" is frequently cited alongside C1444 in the same TSBs, indicating a general overheating condition in the transfer case system.
• C00A8-13 — This code for "4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open" is also mentioned in TSBs and points to an electrical fault within the shift motor assembly.
• C00A7-13 — Mentioned in TSB #08-237-23, this code for "4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open" also points to an electrical issue with the shift motor's internal sensors.
• C149E-64 — Also from TSB #08-237-23, this code for "Transfer Case Motor Position Sensor-Signal Plausibility Failure" indicates the control module is receiving irrational data from the shift motor's position sensor.

Technical Service Bulletins (TSBs) & Recalls

• 21-048-24: Identifies C1444-98 and points to the transfer case shift motor as a potential cause.
• 9100409: Advises technicians to reference TSB 21-048-24 for shift motor replacement before replacing the entire transfer case unit for code C1444-98.
• 08-237-23: Details a potential loose wire harness connector on the transfer case shift motor as a cause for C1444-98 on certain 2023 models built between June 16 and June 24, 2023.

Platform-Specific Known Issues

• TSB #21-048-24 directly links C1444-98 to a potential failure of the transfer case shift motor.
• TSB #9100409 (a STAR case) warns technicians not to replace the entire transfer case for this code before referencing TSB #21-048-24, indicating the motor is the more common and cost-effective fix.
• TSB #08-237-23 identifies a specific manufacturing issue on some 2023 models (built June 16-24, 2023) where a loose connector on the shift motor could cause C1444 and other related codes.
• Real Owner Experience: On the Reddit forum r/ram_trucks, owners have discussed this exact issue. One user with a 2023 Ram 1500 experiencing electrical gremlins was told by the dealer that communications running through other modules could be a cause, highlighting the complexity of the truck's electrical system. Another owner of a 2011 Grand Cherokee (a related platform) with code C1444 noted symptoms of binding and wheel hop in sharp turns, confirming the mechanical effects of the failure.

Scan Tool Commands That Help

• wiTECH or AlfaOBD: Active Diagnostics / Service Functions — To command the transfer case to shift between 2WD, 4H, and 4L to functionally test the shift motor's operation after checking for codes. Failure to shift when commanded points to a motor or wiring issue.
• wiTECH or AlfaOBD: Clear Faults — After a repair is completed (e.g., motor replacement, connector reseating), this function is used to erase all stored DTCs from the DTCM and other modules before test driving to verify the fix.
• wiTECH or AlfaOBD: ECU Reset / Initialization — After replacing a major component like the DTCM or sometimes the shift motor, a module reset or initialization procedure may be required to ensure the new part is recognized and calibrated by the vehicle's network.

Wiring & Ground Locations

• Drivetrain Control Module (DTCM) — In the passenger footwell, typically located against the firewall/dash panel, under the carpet.. This is the control module that sets code C1444. A loose connector at this module, as described in TSB #08-237-23, or a bad connection due to water intrusion or physical damage can cause this and other related codes.
• DTCM Fuses (F57, F64, F72, F77, F78) — In the under-hood fuse box (Power Distribution Center). The exact numbering may vary slightly by year, but these are the commonly cited fuses for the 4WD system.. A loss of power to the DTCM due to a blown fuse will cause a loss of all 4WD functions and will often set a U0102 (Lost Communication with TCCM) code, but could be a root cause for other electrical faults. A blown fuse, particularly F77, has been confirmed by owners to cause a complete loss of 4WD selector function.

Real Owner Repair Stories

• RamForum.com user 'CreativeIndy' (2014 Ram 1500 Sport) — No 4WD function, no lights on the selector switch, and code U0102-00 (Lost Communication with Transfer Case Control Module).
  ❌ Tried (didn't work) Replacing the transfer case actuator (motor), Replacing the dash selector switch, Initially checking fuse #57
  ✅ What actually fixed it Found and replaced a blown fuse F77. After replacing, the code still appeared until the user physically wiggled and reseated the wiring connectors at the DTCM under the passenger dash and at the firewall. After clearing codes again, function was restored.
• YouTube channel 'Melon King' (Unknown year GM/Chevy truck (demonstrates a common failure mode applicable to many brands)) — Motor could be heard turning when 4WD was selected, but the transfer case would not engage.
  ❌ Tried (didn't work) Listening for motor activation, which seemed to be working.
  ✅ What actually fixed it Upon disassembling the transfer case shift motor, the large internal plastic reduction gear was found to have snapped completely in half. The motor was spinning freely, but the broken gear could not transmit that force to the transfer case shift shaft. The fix was to replace the entire shift motor assembly.

OEM Part Supersession History

• 68450803AA → N/A — No supersession found as of early 2026. This indicates the part has remained consistent for the specified model years.
  Heads up: Part is listed for 2019-2025+ Ram 1500/2500/3500 models but always verify fitment with VIN.

Model Year Variations Within This Range

• 2019-2025: The 5th Generation Ram 1500 (DT platform) uses BorgWarner BW48-11 (on-demand/4-Auto) or BW48-12 (part-time) transfer cases. In contrast, the concurrently sold Ram 1500 'Classic' (DS platform) continued to use the older BorgWarner BW44 series transfer case. This C1444 issue is most commonly documented on the newer DT platform with the BW48 transfer cases.