GM Service Manual Online
For 1990-2009 cars only
Table 1: Heated Seat Module -- Driver -- C1
Table 2: Heated Seat Module -- Driver -- C2 (Seat Cushion)
Table 3: Heated Seat Module -- Driver -- C3 (Seat Back)
Table 4: Heated Seat Module -- Front Passenger -- C1
Table 5: Heated Seat Module -- Front Passenger -- C2 (Seat Cushion)
Table 6: Heated Seat Module -- Front Passenger -- C3 (Seat Back)
Table 7: Heated Seat Switch -- Driver
Table 8: Heated Seat Switch -- Front Passenger
Table 9: Memory/Personalization Function Switch
Table 10: Memory Seat Module (MSM) C1
Table 11: Memory Seat Module (MSM) C2
Table 12: Seat Adjuster Switch -- Driver (w/ A45)
Table 13: Seat Adjuster Switch -- Driver (w/o A45)
Table 14: Seat Adjuster Switch -- Front Passenger
Table 15: Seat Belt Tower Motor -- Driver
Table 16: Seat Belt Tower Motor -- Front Passenger
Table 17: Seat Front Vertical Motor -- Driver
Table 18: Seat Front Vertical Motor -- Front Passenger
Table 19: Seat Front Vertical Position Sensor -- Driver (w/A45)
Table 20: Seat Horizontal Motor -- Driver
Table 21: Seat Horizontal Motor -- Front Passenger
Table 22: Seat Horizontal Position Sensor -- Driver
Table 23: Seat Lumbar Horizontal Motor -- Driver
Table 24: Seat Lumbar Horizontal Motor -- Front Passenger
Table 25: Seat Lumbar Horizontal Position Sensor -- Driver
Table 26: Seat Lumbar Switch -- Driver
Table 27: Seat Lumbar Switch -- Driver (w/ A45)
Table 28: Seat Lumbar Switch -- Front Passenger
Table 29: Seat Lumbar Vertical Motor -- Driver
Table 30: Seat Lumbar Vertical Motor -- Front Passenger
Table 31: Seat Lumbar Vertical Position Sensor -- Driver
Table 32: Seat Rear Vertical Motor -- Driver
Table 33: Seat Rear Vertical Motor -- Front Passenger
Table 34: Seat Rear Vertical Position Sensor -- Driver
Table 35: Seat Recline Motor -- Driver
Table 36: Seat Recline Motor -- Front Passenger
Table 37: Seat Recline Position Sensor -- Driver

Heated Seat Module -- Driver -- C1


Object Number: 62469  Size: CH

Connector Part Information

    • 12064998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

241

Ignition 3 Voltage

B

ORN

1040

Battery Positive Voltage

C

PNK

1501

Driver Heated Seat High/Low Signal

D

BRN

1463

Heated Seat Low Temperature Indicator Control

E

BLK

450

Ground

F

DK BLU

1461

Heated Seat High Temperature Indicator Control

G

LT BLU/WHT

181

Heated Seat Control Module Status Signal

H

YEL

182

Heated Seat Control Module Inhibit Signal

Heated Seat Module -- Driver -- C2 (Seat Cushion)


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

--

Heated Seat Cushion Element Supply Voltage

B

YEL

--

Heated Seat Cushion Element Control

C

BLK/RED

--

Heated Seat Cushion Temperature Sensor Signal

D

BLK/RED

--

Driver Heated Seat Cushion Temperature Sensor Low Reference

Heated Seat Module -- Driver -- C3 (Seat Back)


Object Number: 646421  Size: CH

Connector Part Information

    • 12059253
    • 2-Way F Metri-Pack 150 Series (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

BLK

--

Driver Heated Seat Back Element Supply Voltage

B

BLK

--

Driver Heated Seat Back Element Control

Heated Seat Module -- Front Passenger -- C1


Object Number: 62469  Size: CH

Connector Part Information

    • 12064998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

241

Ignition 3 Voltage

B

ORN

1440

Battery Positive Voltage

C

PNK/BLK

1503

Passenger Heated Seat High/Low Signal

D

BRN/WHT

1506

Passenger Heated Seat Low Temperature Indicator Control

E

BLK

450

Ground

F

DK BLU/WHT

1504

Passenger Heated Seat High Temperature Indicator Control

G

LT BLU/WHT

181

Heated Seat Control Module Status Signal

H

YEL

182

Heated Seat Control Module Inhibit Signal

Heated Seat Module -- Front Passenger -- C2 (Seat Cushion)


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

--

Heated Seat Cushion Element Supply Voltage

B

YEL

--

Heated Seat Cushion Element Control

C

BLK/RED

--

Heated Seat Cushion Temperature Sensor Signal

D

BLK/RED

--

Front Passenger Heated Seat Cushion Temperature Sensor Low Reference

Heated Seat Module -- Front Passenger -- C3 (Seat Back)


Object Number: 646421  Size: CH

Connector Part Information

    • 12059253
    • 2-Way F Metri-Pack 150 Series (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

BLK

--

Front Passenger Heated Seat Back Element Supply Voltage

B

BLK

--

Front Passenger Heated Seat Back Element Control

Heated Seat Switch -- Driver


Object Number: 130714  Size: CH

Connector Part Information

    • 12124997
    • 5-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1461

Heated Seat High Temperature Indicator Control

B

BRN

1463

Heated Seat Low Temperature Indicator Control

C

PNK

1501

Driver Heated Seat High/Low Signal

D

GRY

8

Instrument Panel Lamp Supply Voltage - 1

E

BLK

450

Ground

Heated Seat Switch -- Front Passenger


Object Number: 130714  Size: CH

Connector Part Information

    • 12124997
    • 5-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

1504

Passenger Heated Seat High Temperature Indicator Control

B

BRN/WHT

1506

Passenger Heated Seat Low Temperature Indicator Control

C

PNK/BLK

1503

Passenger Heated Seat High/Low Signal

D

GRY

8

Instrument Panel Lamp Supply Voltage - 1

E

BLK

450

Ground

Memory/Personalization Function Switch


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

615

Memory 1 Switch Signal

B

PPL

616

Memory 2 Switch Signal

C

--

--

Not Used

D

BLK

350

Ground

Memory Seat Module (MSM) C1


Object Number: 73157  Size: CH

Connector Part Information

    • 12110207
    • 32-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

C1

DK GRN

1518

Power Seat Front Vertical Up Switch Signal

C2

YEL

1519

Power Seat Rear Vertical Up Switch Signal

C3

DK BLU

1520

Power Seat Front Vertical Down Switch Signal

C4

LT BLU

1521

Power Seat Rear Vertical Down Switch Signal

C5

TAN

1522

Power Seat Horizontal Forward Switch Signal

C6

LT GRN

1523

Power Seat Horizontal Rearward Switch Signal

C7

LT GRN

276

Driver Seat Recline Motor Forward Control

C8

LT BLU

277

Driver Seat Recline Motor Rearward Control

C9

DK BLU

1064

Driver Seat Lumbar Rearward Swtich Signal

C10

YEL

1065

Driver Seat Lumbar Forward Swtich Signal

C11

WHT

1066

Driver Seat Lumbar Up Switch Signal

C12

YEL/BLK

1067

Driver Seat Lumbar Down Switch Signal

C13

GRY

788

5 Volt Reference

C14

BRN/WHT

557

Front Vertical Seat Motor Position Sensor Signal

C15

BLK

782

Memory Seat/Mirror Sensor Low Reference

C16

DK GRN

569

Horizontal Seat Motor Position Sensor Signal

D1

TAN

568

Rear Vertical Seat Motor Position Sensor Signal

D2

WHT/BLK

570

Driver Seat Recline Motor Position Sensor Signal

D3

YEL

1063

Driver Seat Lumbar Horizontal Position Sensor Signal

D4

BLK

1062

Driver Seat Lumbar Vertical Position Sensor Signal

D5

--

--

Not Used

D6

RED/BLK

1060

Driver Seat Belt Tower Motor Position Sensor Signal

D7-D8

--

--

Not Used

D9

WHT/BLK

1068

Seat Belt Tower Up Signal

D10

DK BLU/WHT

1069

Seat Belt Tower Down Signal

D11

ORN

2040

Battery Positive Voltage

D12

--

--

Not Used

D13

BRN

241

Ignition 3 Voltage

D14

PPL

1807

Class 2 Serial Data

D15

PPL/WHT

1807

Class 2 Serial Data

D16

--

--

Not Used

Memory Seat Module (MSM) C2


Object Number: 35456  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1340

Battery Positive Voltage

B

BLK

450

Ground

Seat Adjuster Switch -- Driver (w/ A45)


Object Number: 258247  Size: CH

Connector Part Information

    • 12129432
    • 16-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1520

Power Seat Front Vertical Down Switch Signal

B

LT GRN

1523

Power Seat Horizontal Rearward Switch Signal

C

LT BLU

1521

Power Seat Rear Vertical Down Switch Signal

D

DK GRN

1518

Power Seat Front Vertical Up Switch Signal

E

TAN

1522

Power Seat Horizontal Forward Switch Signal

F

YEL

1519

Power Seat Rear Vertical Up Switch Signal

G

LT BLU

277

Driver Seat Recline Motor Rearward Control

H

LT GRN

276

Driver Seat Recline Motor Forward Control

J

ORN

2040

Battery Positive Voltage

K

WHT/BLK

1068

Seat Belt Tower Up Signal

L

BLK

450

Ground

M

DK BLU/WHT

1069

Seat Belt Tower Down Signal

N-S

--

--

Not Used

Seat Adjuster Switch -- Driver (w/o A45)


Object Number: 258247  Size: CH

Connector Part Information

    • 12129432
    • 16-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

287

Driver Seat Front Vertical Motor Down Control

B

LT GRN

284

Driver Seat Horizontal Motor Rearward Control

C

LT BLU

283

Driver Seat Rear Vertical Motor Down Control

D

DK GRN

286

Driver Seat Front Vertical Motor Up Control

E

TAN

285

Driver Seat Horizontal Motor Forward Control

F

YEL

282

Driver Seat Rear Vertical Motor Up Control

G

LT BLU

277

Driver Seat Recline Motor Rearward Control

H

LT GRN

276

Driver Seat Recline Motor Forward Control

J

ORN

1340

Battery Positive Voltage

K

YEL

1257

Seat Belt Tower Motor Up Control

L

BLK

450

Ground

M

PPL

1258

Seat Belt Tower Motor Down Control

N-S

--

--

Not Used

Seat Adjuster Switch -- Front Passenger


Object Number: 258247  Size: CH

Connector Part Information

    • 12129432
    • 16-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

77

Passenger Seat Recline Motor Rearward

B

DK GRN

76

Passenger Seat Recline Motor Forward

C

LT GRN

290

Passenger Seat Horizontal Motor Rearward Control

D

YEL

288

Passenger Seat Rear Vertical Motor Up Control

E

DK GRN

297

Passenger Seat Front Vertical Motor Up Control

F

TAN

296

Passenger Seat Horizontal Motor Forward Control

G

DK BLU

298

Passenger Seat Front Vertical Motor Down Control

H

LT BLU

289

Passenger Seat Rear Vertical Motor Down Control

J-M

--

--

Not Used

N

LT GRN

1625

Passenger Seat Belt Tower Motor Up Control

P

ORN

1340

Battery Positive Voltage

R

YEL

1626

Passenger Seat Belt Tower Motor Down Control

S

BLK

450

Ground

Seat Belt Tower Motor -- Driver


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

1257

Driver Head Rest Motor Up

B

GRY

1258

Driver Head Rest Motor Down

Seat Belt Tower Motor -- Front Passenger


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1625

Head Rest Motor Up

B

YEL

1626

Head Rest Motor Down

Seat Front Vertical Motor -- Driver


Object Number: 35456  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

286

Driver Seat Front Vertical Motor Up Control

B

DK BLU

287

Driver Seat Front Vertical Motor Down Control

Seat Front Vertical Motor -- Front Passenger


Object Number: 35456  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

297

Passenger Seat Front Vertical Motor Up Control

B

DK BLU

298

Passenger Seat Front Vertical Motor Down Control

Seat Front Vertical Position Sensor -- Driver (w/A45)


Object Number: 130702  Size: CH

Connector Part Information

    • 12059584
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

B

BLK

782

Memory Seat/Mirror Sensor Low Reference

C

BRN/WHT

557

Front Vertical Seat Motor Position Sensor Signal

D

GRY

788

5 Volt Reference

Seat Horizontal Motor -- Driver


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

285

Driver Seat Horizontal Motor Forward Control

B

LT GRN

284

Driver Seat Horizontal Motor Rearward Control

Seat Horizontal Motor -- Front Passenger


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

296

Passenger Seat Horizontal Motor Forward Control

B

LT GRN

290

Passenger Seat Horizontal Motor Rearward Control

Seat Horizontal Position Sensor -- Driver


Object Number: 405591  Size: CH

Connector Part Information

    • 12059581
    • 3-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

782

Memory Seat/Mirror Sensor Low Reference

B

DK GRN

569

Horizontal Seat Motor Position Sensor Signal

C

GRY

788

5 Volt Reference

D

--

--

Not Used

Seat Lumbar Horizontal Motor -- Driver


Object Number: 130707  Size: CH

Connector Part Information

    • 12020556
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

611

Driver Seat Lumbar Motor Forward Control

B

PNK

610

Driver Seat Lumbar Motor Rearward Control

Seat Lumbar Horizontal Motor -- Front Passenger


Object Number: 130707  Size: CH

Connector Part Information

    • 12020556
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

211

Passenger Seat Lumbar Motor Forward Control

B

PNK

210

Passenger Seat Lumbar Motor Rearward Control

Seat Lumbar Horizontal Position Sensor -- Driver


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

782

Memory Seat/Mirror Sensor Low Reference

B

ORN

1063

Driver Seat Lumbar Horizontal Postion Sensor Signal

C

LT BLU

788

5 Volt Reference

Seat Lumbar Switch -- Driver


Object Number: 73146  Size: CH

Connector Part Information

    • 12052854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

767

Driver Seat Lumbar Motor Down Control

B

PNK

610

Driver Seat Lumbar Motor Rearward Control

C

DK BLU

611

Driver Seat Lumbar Motor Forward Control

D

--

--

Not Used

E

BLK

450

Ground

F

TAN

768

Driver Seat Lumbar Motor Up Control

G

ORN

2040

Battery Positive Voltage

Seat Lumbar Switch -- Driver (w/ A45)


Object Number: 73146  Size: CH

Connector Part Information

    • 12052854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

1067

Driver Seat Lumbar Switch Down Signal

B

DK BLU

1064

Driver Seat Lumbar Rearward Switch Signal

C

YEL

1065

Driver Seat Lumbar Forward Switch Signal

D

--

--

Not Used

E

BLK

450

Ground

F

WHT

1066

Driver Seat Lumbar Up Switch Signal

G

ORN

2040

Battery Positive Voltage

Seat Lumbar Switch -- Front Passenger


Object Number: 73146  Size: CH

Connector Part Information

    • 12052854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

792

Passenger Seat Lumbar Motor Down Control

B

DK BLU

211

Passenger Seat Lumbar Motor Forward Control

C

WHT

210

Passenger Seat Lumbar Motor Rearward Control

D

--

--

Not Used

E

BLK

450

Ground

F

PNK

793

Passenger Seat Lumbar Motor Up Control

G

ORN

1340

Battery Positive Voltage

Seat Lumbar Vertical Motor -- Driver


Object Number: 130707  Size: CH

Connector Part Information

    • 12020556
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

768

Driver Seat Lumbar Motor Up Control

B

PPL

767

Driver Seat Lumbar Motor Down Control

Seat Lumbar Vertical Motor -- Front Passenger


Object Number: 130707  Size: CH

Connector Part Information

    • 12020556
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

793

Passenger Seat Lumbar Motor Up Control

B

PPL

792

Passenger Seat Lumbar Motor Down Control

Seat Lumbar Vertical Position Sensor -- Driver


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

782

Memory Seat/Mirror Sensor Low Reference

B

RED

1062

Driver Seat Lumbar Vertical Postion Sensor Signal

C

LT BLU

788

5 Volt Reference

Seat Rear Vertical Motor -- Driver


Object Number: 153645  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

282

Driver Seat Rear Vertical Motor Up Control

B

LT BLU

283

Driver Seat Rear Vertical Motor Down Control

Seat Rear Vertical Motor -- Front Passenger


Object Number: 35456  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

288

Passenger Seat Rear Vertical Motor Up Control

B

LT BLU

289

Passenger Seat Rear Vertical Motor Down Control

Seat Rear Vertical Position Sensor -- Driver


Object Number: 130701  Size: CH

Connector Part Information

    • 12059582
    • 3-Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

BLK

782

Memory Seat/Mirror Sensor Low Reference

B

TAN

568

Rear Vertical Seat Motor Position Sensor Signal

D

GRY

788

5 Volt Reference

Seat Recline Motor -- Driver


Object Number: 153645  Size: CH

Connector Part Information

    • 12129082
    • 2-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

277

Driver Seat Recline Motor Rearward Control

B

LT GRN/BLK

276

Driver Seat Recline Motor Forward Control

Seat Recline Motor -- Front Passenger


Object Number: 153645  Size: CH

Connector Part Information

    • 12129082
    • 2-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

77

Passenger Seat Recline Motor Rearward

B

DK GRN

76

Passenger Seat Recline Motor Forward

Seat Recline Position Sensor -- Driver


Object Number: 130704  Size: CH

Connector Part Information

    • 12059583
    • 3-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

GRY

788

5 Volt Reference

C

WHT/BLK

570

Driver Seat Recline Motor Position Sensor Signal

D

BLK

782

Memory Seat/Mirror Sensor Low Reference