For 1990-2009 cars

Connector 1: | A/C Compressor Clutch
Connector 2: | A/C Refrigerant Pressure Sensor
Connector 3: | Air Temperature Actuator
Connector 4: | Ambient Air Temperature Sensor
Connector 5: | Blower Motor
Connector 6: | HVAC Control - A
Connector 7: | HVAC Control - B
Connector 8: | High Speed Blower Motor Relay
Connector 9: | Mode Actuator
Connector 10: | Recirculation Actuator
Connector 11: | Sunload Sensor and Security Indicator

### A/C Compressor Clutch

#### Connector Part Information

- OEM: AK 32232
- Service: N/A
- Description: GY

#### A/C Compressor Clutch

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
A | D-GN | -- | A/C Compressor Clutch Supply Voltage
B | BK | -- | Ground

### A/C Refrigerant Pressure Sensor

#### Connector Part Information

- OEM: AK 32316
- Service: N/A
- Description: BK

#### A/C Refrigerant Pressure Sensor

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | GY(LHD L-BU(RHD) | -- | 5-Volt Reference
2 | BN | -- | Ground
3 | OG/BK | -- | A/C Refrigerant Pressure Sensor Signal

### Air Temperature Actuator

#### Connector Part Information

- OEM: KET MG 610203
- Service: N/A
- Description: WH

#### Air Temperature Actuator

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | -- | -- | Not Used
2 | BK | -- | Air Temperature
3 | BN | -- | Low Reference
4 | -- | -- | Not Used
5 | YE | -- | Low Reference
6 | YE/BK | -- | Lower Mode Door Position Signal
7 | L-BU | -- | Air Temperature Door Control

### Ambient Air Temperature Sensor

#### Connector Part Information

- OEM: KUM PB 625-02027
- Service: N/A
- Description: BK

#### Ambient Air Temperature Sensor

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | YE | -- | Low Reference
2 | -- | -- | Not Used
3 | L-GN/BK | -- | Ambient Air Temperature Sensor Signal

### Blower Motor

#### Connector Part Information

- OEM: KET MG 610281
- Service: N/A
- Description: WH

#### Blower Motor

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | PK | -- | Blower Motor Speed Signal
2 | YE | -- | Blower Motor Supply Voltage

### HVAC Control - A

#### Connector Part Information

- OEM: KET MG 610360
- Service: N/A
- Description: BK

#### HVAC Control - A

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | BK | -- | Ground
2 | L-BU | -- | Air Temperature Door Control
3 | -- | -- | Not Used
4 | BN/WH | -- | Instrument Panel Lamps Dimmer Switch Control
5 | BN | -- | Ignition 2 Voltage
6 | D-GN/WH | -- | A/C Request Signal
7 | -- | -- | Not Used
8 | YE | -- | Air Temperature Door Control
9-13 | -- | -- | Not Used
14 | OG | -- | Battery Positive Voltage
15 | YE | -- | Ground
16 | D-BU/BK | -- | Blower High Relay Control

### HVAC Control - B

#### Connector Part Information

- OEM: KET MG 610363
- Service: N/A
- Description: WH

#### HVAC Control - B

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | -- | -- | Not Used
2 | GY/BK | -- | Blower Motor Power Transistor Control
3 | -- | -- | Not Used
4 | BN | -- | Air Temp Actuator Reference Voltage
5 | YE/BK | -- | Air Temp Actuator Signal
6 | BK | -- | Ground
7 | D-GN | -- | Wiper Signal
8 | L-GN/BK | -- | Ambient Air Temperature Sensor Signal
9 | -- | -- | Not Used
10 | L-BU/BK | -- | Sunload Sensor Signal
11 | BK | -- | Ground
12 | D-BU | -- | Blower Feedback
13 | PK/WH | -- | Recirc Door Control A
14 | D-GN/BK | -- | Recirc Door Control B
15 | -- | -- | Not Used
16 | D-GN/BK | -- | Mode Actuator
17 | PK | -- | Mode Actuator
18 | YE/D-BU | -- | Mode Actuator
19 | WH/BK | -- | Mode Actuator
20 | PK/BK | -- | Mode Actuator

### High Speed Blower Motor Relay

#### Connector Part Information

- OEM: AK 5443-R
- Service: N/A
- Description: 9-Way Relay

#### High Speed Blower Motor Relay

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
30 | PK | -- | Blower Motor Speed Signal
85 | BN | -- | Ignition Voltage
86 | D-BU/BK | -- | High Speed Blower Motor Control
87 | BK | -- | Ground

### Mode Actuator

#### Connector Part Information

- OEM: KET MG 610203
- Service: N/A
- Description: WH

#### Mode Actuator

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | YE/D-BU | -- | Lower Mode Valve Solenoid Control
2 | PK | -- | Defrost Mode Valve Solenoid Control
3 | D-GN/BK | -- | Upper Mode Valve Solenoid Control
4 | BN | -- | Ignition 3 Voltage
5 | BK | -- | Ground
6 | PK/BK | -- | Mode Valve Signal
7 | WH/BK | -- | Mode Valve Signal

### Recirculation Actuator

#### Connector Part Information

- OEM: KET MG 610203
- Service: N/A
- Description: WH

#### Recirculation Actuator

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1-3 | -- | -- | Not Used
4 | BN | -- | Ignition Voltage
5 | PK/WH | -- | Recirculation Door Control A
6 | -- | -- | Not Used
7 | D-GN/BK | -- | Recirculation Door Control B

### Sunload Sensor and Security Indicator

#### Connector Part Information

- OEM: KET MG 610159
- Service: N/A
- Description: WH

#### Sunload Sensor and Security Indicator

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | YE | -- | Battery Positive Voltage
2 | WH | -- | Security Indicator Control
3 | YE | -- | Sunload Sensor Signal
4 | BK | -- | Low Reference