OEM CertifiedFactory Sealed OEM
Key Diagram & Connector Pinout Callouts
Blower OutputPin 3 (Black)
PWM ground to blower motor for speed control
Control SignalPin 4 (Gray)
Duty-cycle command from HVAC climate control head
Primary OEM Part #23151955
Inventory Available 6 Ready to Ship
GM Chevrolet / GMC Electronic Climate Control / HVAC Blower Control Module
Manufacturer: General Motors OEM / ACDelco • SKU: HVAC-GM-23151955
Standard Dealership Market Price:$185.00
Direct Buy Now Price:$129.00
Save 30% ($56)
Quantity:
1
(Max 6 in batch) Same-day Dispatch
12-Month ACDelco Warranty
OEM Interchanges & Cross Reference
Mechanics can cross-reference with these stamped casing and manufacturer numbers:
23151955 (Primary)231519551577320315-81450ACDelco 15-73150
Product Overview & Technical Description
Factory brand-new GM ACDelco electronic HVAC blower motor control module. Sinks the blower motor ground and pulse-width-modulates fan speed based on the climate control head's command. Resolves stuck high-blower, no-blower, and intermittent fan speed control failures.
Key Engineering Features:
- High-current MOSFET with heatsink for PWM blower speed control
- Direct fit into blower housing with OE connector
- Resolves blower motor only running on high / no-speed faults
- Brand new genuine ACDelco part
Guaranteed Vehicle Fitment (2014–2026)
Supported MakesChevrolet, GMC, Cadillac
Model Years Covered2014 – 2019
Eligible ModelsSilverado 1500 • Sierra 1500 • Tahoe • Suburban • Yukon • Escalade
Hardware & Electrical Specs
Operating Voltage:12V DC battery
Pin Terminal Count:4 Pins
Terminal Plating:Tin-plated power terminals
Protocols / Bus:PWM command from HVAC head unit
Current Rating40A peak MOSFET driver
Control TypePWM ground-side speed regulation
Boxed Weight1.8 lbs
Box Dimensions6.0 x 5.0 x 3.5 in
VIN Flashing / ProgrammingNot Required (Direct Plug-in)