HVAC Control Module C2 (CJ3)

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION HVAC Control Module C2 (CJ3)
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Connector End View
GM850856Courtesy of GENERAL MOTORS CORP.
HVAC Connector End Views

Connector Part Information 
  • OEM: 15416970
  • Service: See Catalog
  • Description: 16-Way F Micro 64 Modular (BK)
Terminal Part Information 
HVAC Control Module C2 (CJ3)

Pin Wire Color Circuit No. Function
1 YE 1791 Low Reference
2 D-BU/WH 1199 Air Temperature Door Control
3 WH/BK 1236 Auxiliary Air Temperature Door Control
4 D-BU 1646 Auxiliary Air Temperature Door Position Signal
5 L-GN/BK 1647 Recirculation Door Control B
6 PK/WH 1648 Recirculation Door Control A
7 GY/BK 754 Blower Motor Speed Control
8 TN 2273 Mode Door Control
9 L-GN 2275 Mode Door Position Signal
10-16 - - Not Used
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.