For 1990-2009 cars

Table 1: | A/C Compressor Clutch (V8)
Table 2: | A/C Compressor Clutch (V6)
Table 3: | A/C Refrigerant Pressure Sensor
Table 4: | Air Quality Sensor
Table 5: | Inside Air Temperature Sensor
Table 6: | Outside Ambient Air Temperature Sensor
Table 7: | Blower Controller
Table 8: | Blower Motor
Table 9: | Internal Recirculation Actuator
Table 10: | HVAC Control Module (CCP) - C1
Table 11: | HVAC Control Module (CCP) - C2
Table 12: | HVAC Control Module (CCP) - C3
Table 13: | Mode Actuator
Table 14: | Rear Mode Actuator
Table 15: | Sunload Sensor
Table 16: | Right Rear Defogger (C1)
Table 17: | Right Rear Defogger (C2)
Table 18: | Cooling Fan - Right (C1)
Table 19: | Cooling Fan - Left (C2)

### A/C Compressor Clutch (V8)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | D-GN | 59 | A/C Compressor Clutch Supply Voltage
2 | BK | 1550 | Ground

### A/C Compressor Clutch (V6)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | D-GN | 59 | A/C Compressor Clutch Supply Voltage
B | BK | 750 | Ground

### A/C Refrigerant Pressure Sensor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | BK/WH | 452 | Signal Ground V8
BK | 452 | Sensor Low Reference V6
B | GY | 596 | A/C Pressure Sensor 5- Volt Reference V8
GY | 596 | 5-Volt Reference V6
C | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal V8
OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal V6

### Air Quality Sensor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | YE | 61 | Outside Ambient Temperature Sensor Low Reference
2 | PU/WH | 5203 | Air Quality HC Sensor Signal
3 | PK | 1439 | Run/ Crank Ignition 1 Voltage
4 | L-GN/WH | 6845 | Air Quality NOX Sensor Signal
5 | -- | -- | Not Used
6 | BK | 250 | Ground

### Inside Air Temperature Sensor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | YE | 61 | Outside Ambient Temperature Sensor Low Reference
2 | D-GN | 734 | Inside Air Temperature Sensor Signal

### Outside Ambient Air Temperature Sensor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | L-GN/BK | 735 | Outside Ambient Air Temperature Sensor Signal
B | YE | 61 | Outside Ambient Temperature Sensor Low Reference

### Blower Controller

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | PU | 374 | Blower Motor Speed Control
2 | L-BU | 188 | Blower Motor Resistor Assembly Supply Voltage
3 | GY/BK | 754 | Blower Motor Fan Control
4 | BK | 450 | Ground

### Blower Motor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | PU | 374 | Blower Motor Speed Control
2 | L-BU | 188 | Blower Motor Resistor Assembly Supply Voltage

### Internal Recirculation Actuator

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | YE | 61 | Outside Ambient Temperature Sensor Low Reference
2 | GY | 705 | 5-Volt Reference
3 | BN | 41 | Run Ignition 3 Voltage
4 | PU | 1838 | Internal Recirculation Mode Door Position Signal
5 | D-GN | 1614 | Circulation Door Control

### HVAC Control Module (CCP) - C1

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | GY | 705 | 5-Volt Reference
2 | -- | -- | Not Used
3 | D-GN | 5060 | Low speed GMLAN serial data
4-5 | -- | -- | Not Used
6 | BN | 247 | Blower Relay
7-8 | -- | -- | Not Used
9 | RD/WH | 340 | Power Input
10 | YE | 61 | Sensor Reference Voltage
11 | BK/WH | 451 | Ground
12-15 | -- | -- | Not Used
16 | GY/BK | 754 | Signal Voltage Control
17 | -- | -- | Not Used
18 | PK | 1539 | Operating

### HVAC Control Module (CCP) - C2

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | L-BU | 733 | Driver Air Temperature Motor Signal Input
2 | D-GN | 5518 | Rear Temperature Motor Signal Input
3 | GY | 2599 | Rear Mode Motor Signal Input
4 | -- | -- | Not Used
5 | WH | 278 | Solar Battery Signal
6 | GY | 1548 | Front Passenger Solar Sensor
7 | D-GN | 734 | Inside Air Temperature Sensor
8 | PU/WH | 5203 | HC Sensor
9 | D-BU | 1646 | Passenger Air Temperature Motor Signal Input
10 | YE/BK | 1814 | Driver Mode Motor Signal Input
11 | BN | 41 | Recirculation Motor Signal Input
12 | -- | -- | Not Used
13 | L-BU/BK | 590 | Driver Solar Sensor
14 | GY | 731 | Evaporator Temperature Sensor
15 | L-GN/BK | 735 | Outside Ambient Air Temperature
16 | L-GN/WH | 6845 | NOX Sensor

### HVAC Control Module (CCP) - C3

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1-2 | -- | -- | Not Used
3 | PU | 1838 | Recirculation Motor Reference Voltage
4 | YE | 1318 | Driver Mode Motor Air Door Control
5 | GY/BK | 2778 | Passenger Temperature Motor Reference Voltage
6 | YE | 1791 | Driver Temperature Motor Reference Voltage
7 | L-GN/WH | 5729 | Rear Mode Motor Air Door Control
8 | L-BU | 5517 | Rear Temperature Motor Reference Voltage
9 | -- | -- | Not Used
10 | YE | 6817 | LED Backlight Dimming Control
11 | -- | -- | Not Used
12 | D-GN | 1614 | Recirculation Motor
13 | TN | 2273 | Driver Mode Motor Reference Voltage
14 | WH/BK | 1236 | Passenger Temperature Door Control
15 | D-BU | 1199 | Driver Temperature Door Control
16 | L-GN/BK | 5730 | Rear Mode Motor Reference Voltage
17 | BN | 5516 | Rear Temperature Motor Air Door Control
18 | -- | -- | Not Used

### Mode Actuator

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | GY/BK | 2778 | Passenger Temperature Motor (hot)
2 | WH/BK | 1236 | Passenger Temperature Motor (cold)
3 | D-BU | 1646 | Passenger Temperature Motor Signal Output
4 | YE | 1318 | Driver Mode Motor Supply
5 | TN | 2273 | Driver Mode Motor Control Signal
6 | YE/BK | 1814 | Driver Mode Motor Signal Output
7 | D-GN | 5518 | Rear Temperature Motor Signal Output
8 | L-BU | 5517 | Rear Temperature Motor (hot)
9 | BN | 5516 | Rear Temperature Motor (cold)
10 | GY | 705 | 5V Switch
11 | YE | 1791 | Driver Temperature Motor (hot)
12 | L-BU | 733 | Driver Temperature Motor Signal Output
13 | D-BU | 1199 | Driver Temperature Motor (cold)
14 | YE | 61 | Sensor Reference Voltage
15 | GY | 731 | Evaporator Temperature Sensor Control Signal Output
16 | -- | -- | Not Used

### Rear Mode Actuator

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | YE | 61 | Reference Voltage
2 | GY | 705 | 5V Switch
3 | GY | 2599 | Rear Mode Motor Signal Output
4 | L-GN/WH | 5729 | Rear Mode Motor Air Door Control
5 | L-GN/BK | 5730 | Rear Mode Motor Reference Voltage

### Sunload Sensor

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | L-BU/BK | 590 | Solar Sensor Driver Signal
B | GY | 1548 | Passenger Solar Sensor Signal
C | YE | 61 | Low Reference
D | WH | 278 | Ambient Light Sensor Signal

### Right Rear Defogger (C1)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | PU | 293 | Power Input
B | BK | 1950 | Ground

### Right Rear Defogger (C2)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
A | BK | 1850 | Ground

### Cooling Fan - Right (C1)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | L-BU | 409 | Cooling Fan Supply Power (1)
2 | BK | 250 | Ground

### Cooling Fan - Left (C2)

Pin | Wire | Circuit | Function
--- | --- | --- | ---
1 | GY | 532 | Cooling Fan Supply Voltage (2)
2 | WH | 504 | Serial and Parallel Fan Relay