Home› Transfer Case > Control Modules› Dorman 599-101 Transfer Case Control Module
Dorman 599-101 Transfer Case Control ModuleOE Quality 60-Day Returns
Dorman 599-101 Transfer Case Control Module - view 1
Dorman 599-101 Transfer Case Control Module - view 2
Part #: 599-101

Dorman 599-101 Transfer Case Control Module

N/A
⚙️ 14 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$339.86Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Blazer, S10, Jimmy, and Sonoma
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Transfer Case Control Module options

Overview of the Dorman Transfer Case Control Module 599-101

The Dorman Transfer Case Control Module 599-101 is designed for reliable operation in select Chevrolet and GMC vehicles. This module features a blue connector and pin-type terminals, ensuring secure and precise electrical connections for your transfer case system.

  • Compatible with Chevrolet Blazer, Jimmy, S10, and GMC Sonoma models
  • Blue connector color for easy identification
  • Pin terminal type for stable electrical contact
  • Includes one transfer case control module per package

Detailed Product Description

This transfer case control module by Dorman is engineered to meet the specific requirements of transfer case systems in Chevrolet Blazer, Jimmy, S10, and GMC Sonoma vehicles. The blue connector color helps technicians quickly identify the module during installation or diagnostics. The pin terminal type provides a reliable connection to the vehicle’s wiring harness, reducing the risk of electrical faults. The module is supplied as a single unit, ready for direct replacement.

Common Applications and Issues Addressed

  • Restores proper transfer case shifting and engagement
  • Resolves intermittent or complete loss of 4WD functionality
  • Eliminates error codes related to transfer case control module failure
  • Improves communication between transfer case and vehicle control systems
  • Addresses electrical connection issues due to worn or damaged terminals

Installation Notes and Tips

  • Ensure vehicle compatibility with Chevrolet Blazer, Jimmy, S10, or GMC Sonoma before installation
  • Disconnect the battery prior to module replacement to prevent electrical damage
  • Verify the blue connector and pin terminals align correctly with the vehicle harness
  • Follow manufacturer torque specifications for mounting hardware
  • Clear any diagnostic trouble codes after installation to reset the system

Quality Assurance and Warranty Information

Dorman transfer case control modules undergo rigorous testing to meet OEM standards for fit, form, and function. The 599-101 part number is backed by Dorman’s limited warranty, providing coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing your transfer case control module.

BrandDorman
Part Number599-101
Connector ColorBlue
Package ContentsTransfer Case Control Module
Terminal TypePin

This part fits 14 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1997ChevroletBlazer4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1997ChevroletS104WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1997GMCJimmy4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1997GMCSonoma4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1996ChevroletBlazer4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1996ChevroletS104WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1996GMCJimmy4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1996GMCSonoma4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1995ChevroletBlazer4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1995ChevroletS104WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1995GMCJimmy4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1995GMCSonoma4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1994ChevroletS104WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
1994GMCSonoma4WDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1598892473-42101

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Related Articles