K33 HVAC Control Module X2
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 GMC Yukon XL, 2020 GMC Yukon, 2020 Chevrolet Tahoe, 2020 Chevrolet Suburban, and 2020 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
 Courtesy of GENERAL MOTORS COMPANY
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Connector Part Information
- Harness Type: HVAC
- OEM Connector: 15491305
- Service Connector: Service by Harness - See Part Catalog
- Description: 20-Way F USCAR 64 Series (BN)
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Terminal Part Information
| Terminal Type ID |
Terminated Lead |
Diagnostic Test Probe |
Terminal Removal Tool |
Service Terminal |
Tray Name |
Core Crimp |
Insulation Crimp |
| I |
Not Required |
J-35616-64B (LT BU) |
No Tool Required |
Not Required |
Not Required |
Not Required |
Not Required |
| Pin |
Size |
Color |
Circuit |
Function |
Terminal Type ID |
Option |
| 1 |
0.5 |
RD/VT |
3340 |
Secondary Fused Battery Positive Voltage 33 |
I |
- |
| 2 |
0.35 |
GN |
5060 |
Low Speed GMLAN Serial Data |
I |
- |
| 3 |
- |
- |
- |
Not Occupied |
- |
- |
| 4 |
0.35 |
GN/YE |
7531 |
HVAC Control Module LIN Bus 1 |
I |
- |
| 5 - 7 |
- |
- |
- |
Not Occupied |
- |
- |
| 8 |
0.35 |
BK/WH |
1851 |
Ground 18 |
I |
- |
| 9 |
0.5 |
VT/GY |
539 |
Run/Crank Ignition 1 Voltage 5 |
I |
- |
| 10 |
0.5 |
BU/YE |
7574 |
A/C Compressor Solenoid Valve Control |
I |
- |
| 11 |
0.5 |
BU/BN |
7573 |
A/C Compressor Solenoid Valve Control |
I |
- |
| 12 - 14 |
- |
- |
- |
Not Occupied |
- |
- |
| 15 |
0.35 |
BU/GY |
754 |
Blower Motor Speed Control |
I |
- |
| 16 |
0.35 |
GN/BK |
2211 |
Rear Blower Motor Speed Control |
I |
- |
| 17 |
0.35 |
GY/RD |
598 |
HVAC Air Inlet 5 Volt Reference |
I |
- |
| 18 |
0.35 |
BK/YE |
1791 |
Air Temperature Door Low Reference |
I |
- |
| 19 |
0.35 |
BN/VT |
193 |
Rear Defogger Relay Control |
I |
- |
| 20 |
- |
- |
- |
Not Occupied |
- |
- |