GM Service Manual Online
For 1990-2009 cars only
Table 1: Blower Motor (w/o A/C)
Table 2: Blower Motor Resistor (w/o A/C)
Table 3: HVAC Air Temperature Actuator (w/o A/C)
Table 4: HVAC Controller C1 (w/o A/C)
Table 5: HVAC Controller C2 (w/o A/C)
Table 6: HVAC Controller C3 (w/o A/C)
Table 7: HVAC Mode Door Actuator (w/o A/C)
Table 8: HVAC Recirculating/Fresh Air Actuator (w/o A/C)

Blower Motor (w/o A/C)


Object Number: 239986  Size: CH

Connector Part Information

    • 3 Way
    • Male

Pin

Wire Color

Circuit No.

Function

A

LT GRN

191

Blower Motor

B

BLU/RED

193

Blower Motor Resistor

Blower Motor Resistor (w/o A/C)


Object Number: 240173  Size: CH

Connector Part Information

    • 3 Way
    • Male

Pin

Wire Color

Circuit No.

Function

1

BLU/ WHT

196

Fan Low Resistor

2

BLU/RED

193

Blower Motor

3

--

--

Not Used

4

BLU/BLK

195

Fan Medium Low Resistor

5

--

--

Not Used

6

BLU/YEL

194

Fan Medium High Resistor

HVAC Air Temperature Actuator (w/o A/C)


Object Number: 240174  Size: CH

Connector Part Information

    • 5 Way
    • Male

Pin

Wire Color

Circuit No.

Function

1

PNK/BLU

231

Temperature Actuator, Temperature 5

2

--

--

Not Used

3

PNK

230

Temperature Actuator, Temperature 4

4

LT GRN

229

Temperature Actuator, Temperature 2

5

PNK/BLK

232

Temperature Actuator, Temperature 3

6

LT GRN/WHT

228

Temperature Actuator, Temperature 1

HVAC Controller C1 (w/o A/C)


Object Number: 240175  Size: CH

Connector Part Information

    • 16 Way
    • Female

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BLK

186

Ground

3

PNK

187

Temp 4

4

LT GRN/WHT

188

Temp 1

5

BRN/BLU

189

Mode 1

6

BRN/BLK

190

Mode 2

7

BRN/ WHT

191

Mode 3

8

BRN

192

Mode 4

9

--

--

Not Used

10

PNK/BLU

194

Temp 5

11

PNK/BLK

195

Temp 3

12

LT GRN

196

Temp 2

13

LT GRN/GRY

197

Mode 7

14

LT GRN/BLK

198

Mode 8

15

--

--

Not Used

16

BRN/YEL

199

Mode 6

HVAC Controller C2 (w/o A/C)


Object Number: 240177  Size: CH

Connector Part Information

    • 12 Way
    • Female

Pin

Wire Color

Circuit No.

Function

1

BRN/ GRN

200

Mode 5

2

PPL/YEL

175

Recirculate ON

3

GRN

177

Condenser Fan Control

4

BLK/RED

173

Rheostat

5

LT GRN

171

Ignition

6

PPL/GRN

176

Recirculate OFF

7

RED/BLU

184

Ground

8

BRN

172

Illumination

9

PPL/ WHT

178

Not Used

10

BLK

174

Ground

11-12

--

--

Not Used

HVAC Controller C3 (w/o A/C)


Object Number: 240180  Size: CH

Connector Part Information

    • 6 Way
    • Female

Pin

Wire Color

Circuit No.

Function

1

BLK

179

Ground

2

BLU/ WHT

180

Fan Lo

3

BLU/BLK

181

Fan Med Lo

4

BLU/YEL

182

Fan Med Hi

5

BLU/RED

183

Fan Hi

6

RED/BLU

184

Ground

HVAC Mode Door Actuator (w/o A/C)


Object Number: 240182  Size: CH

Connector Part Information

    • 9 Way
    • Female

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

224

Mode Actuator Mode 8

B

BRN/ GRN

221

Mode Actuator Mode 5

C

BRN/BLK

227

Mode Actuator Mode 2

D

BRN/BLU

226

Mode Actuator Mode 1

E

LT GRN/GRY

225

Mode Actuator Mode 7

F

BRN/ WHT

223

Mode Actuator Mode 3

G

BRN

222

Mode Actuator Mode 4

H

BRN/YEL

220

Mode Actuator Mode 6

J

BLK

219

Mode Actuator

HVAC Recirculating/Fresh Air Actuator (w/o A/C)


Object Number: 240183  Size: CH

Connector Part Information

    • 7 Way
    • Female

Pin

Wire Color

Circuit No.

Function

A-C

--

--

Not Used

D

PPL/YEL

233

Recirculate/Fresh Actuator ON

E

LT GRN

236

Fan Relay Input/Motor Output

F

--

--

Not Used

G

PPL/GRN

234

Recirculate/Fresh Actuator OFF

H

PPL/ WHT

235

Ignition