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HVAC Control Module C1 Connector End View

Fig 1: HVAC Control Module C1 Connector End View
GM850856Courtesy of GENERAL MOTORS CORP.
HVAC Connector End Views

Connector Part Information 
  • OEM: 15394150
  • Service: 15394150
  • Description: 16-Way F Micro-Pack 64 Series (BK)
HVAC Control Module C1

Pin Wire Color Circuit No. Function
1 TN/WH 1704 Low Reference
2 TN 552 Low Reference
3 TN/BK 2274 Recirculation Door Control
4 D-GN 1614 Recirculation Door Control
5 WH 119 Mode Door Control
6 TN 2273 Mode Door Control A
7 YE 1791 Air Temperature Door Control B
8 D-BU 1199 Air Temperature Door Control A
9 GY/BK 754 Blower Motor Speed Request Signal
10 TN 808 Low Reference
11 GY 598 5-Volt Reference
12 GY 596 5-Volt Reference
13 GY 597 5-Volt Reference
14 PU 1838 Recirculation Door Position Signal
15 OG 708 Mode Door Position Signal
16 L-BU 733 Air Temperature Door Position Signal


Fig 1: HVAC Control Module C1 Connector End View
GM73156Courtesy of GENERAL MOTORS CORP.
HVAC Control Module C1 Connector End View

Connector Part Information 
  • OEM: 12110088
  • Service: 1211008
  • Description: 24-Way F Micro-Pack 100 Series (GY)
HVAC Control Module C1

Pin Wire Color Circuit No. Function
A1 RD/WH 440 Battery Positive Voltage
A2 BN 141 Ignition 3 Voltage
A3 - - Not Used
A4 D-GN/WH 762 A/C Request Signal
A5 L-BU 292 Rear Defog Switch Signal
A6 L-GN/BK 1647 Recirculation Door Control B
A7 D-BU 1199 Air Temperature Door Control A
A8 YE 1791 Air Temperature Door Control B
A9 GY 597 5-Volt Reference
A10 L-BU 733 Air Temperature Door Position Signal
A11 TN 808 Low Reference
A12 BK/WH 651 Ground
B1 GY 8 Instrument Panel Lamp Supply Voltage
B2 BN 9 Park Lamp Supply Voltage
B3-B4 - - Not Used
B5 TN 683 Rear Defog Indicator Supply Voltage
B6 PK/WH 1648 Recirculation Door Control A
B7 TN 2273 Mode Door Control A
B8 WH 119 Mode Door Control B
B9 GY 596 5-Volt Reference
B10 OG 708 Mode Door Position Signal
B11 TN 552 Low Reference
B12 - - Not Used