GM Service Manual Online
For 1990-2009 cars only
Connector 1: Driver Seat Belt Pretensioner
Connector 2: Driver Seat Belt Switch
Connector 3: Driver Seat Position Sensor
Connector 4: Inflatable Restraint Steering Wheel Module Coil
Connector 5: Passenger Presence Sensor Module
Connector 6: Passenger Seat Belt Pretensioner
Connector 7: Passenger Seat Belt Switch
Connector 8: Passenger Seat Belt Warning Lamp
Connector 9: Passenger Seat Occupant Detection Sensor
Connector 10: SIR Driver Inflatable Module - C1
Connector 11: SIR Driver Inflatable Module - C2
Connector 12: SIR Instrument Panel Module
Connector 13: SIR Left Front Discriminating Sensor
Connector 14: SIR Left Side Impact Module
Connector 15: SIR Left Side Impact Sensor
Connector 16: SIR Right Front Discriminating Sensor
Connector 17: SIR Right Side Impact Inflator Module
Connector 18: SIR Right Side Impact Sensor
Connector 19: SIR Sensing and Diagnostic Module (SDM) - C1
Connector 20: SIR Sensing and Diagnostic Module (SDM) - C2
Connector 21: SIR Sensing and Diagnostic Module (SDM) - C3

Driver Seat Belt Pretensioner


Object Number: 334446  Size: CH

Connector Part Information

  • OEM: 90980-12253
  • Service: N/A
  • Description: YE

Driver Seat Belt Pretensioner

Pin

Wire Color

Function

1

YE

Left Side Pretensioner Low

2

YE/BK

Left Side Pretensioner High

Driver Seat Belt Switch


Object Number: 740777  Size: CH

Connector Part Information

  • OEM: 90980-12257
  • Service: N/A
  • Description: WH

Driver Seat Belt Switch

Pin

Wire Color

Function

1

WH/BK

Ground

2

GN

Driver Seat Belt Switch Signal

3

GN/YE

Seat Belt Indicator Control

Driver Seat Position Sensor


Object Number: 334441  Size: CH

Connector Part Information

  • OEM: 90980-11864
  • Service: N/A
  • Description: WH

Driver Seat Position Sensor

Pin

Wire Color

Function

1

GN/WH

Driver Seat Position High

2

RD/BK

Driver Seat Position Low

Inflatable Restraint Steering Wheel Module Coil


Object Number: 1549394  Size: CH

Connector Part Information

  • OEM: 9123-5561-30
  • Service: N/A
  • Description: 12-Way (BK)

Inflatable Restraint Steering Wheel Module Coil

Pin

Wire Color

Circuit No.

Function

1

BK/YE

28

Horn Relay Output - Coil

2

BN/WH

32

I/P dimmer Supply Voltage

3

BN

1796

Steering Wheel Controls Signal

4

BK/YE

1750

Ground

5

BN/WH

151

Ground

6

BK/YE

28

Horn Relay Control

7

GN

3020

Steering Wheel Module - Stage 1 Low Control

8

WH

3021

Steering Wheel Module - Stage 1 High Control

9-12

--

--

Not Used

Passenger Presence Sensor Module


Object Number: 582955  Size: CH

Connector Part Information

  • OEM: 90980-12356
  • Service: N/A
  • Description: BK

Passenger Presence Sensor Module

Pin

Wire Color

Function

1

RD/BK

Battery Voltage

2

BU/RD

DLC Signal

3

BN

Ground

4

BU/WH

PPS Communication

5

BK/RD

Ground

6

--

Not Used

7

RD/WH

Ignition Voltage

8

BU

SDM Signal

9

BK

Passenger Seat Belt Switch Signal

10-12

--

Not Used

Passenger Seat Belt Pretensioner


Object Number: 334446  Size: CH

Connector Part Information

  • OEM: 90980-12253
  • Service: N/A
  • Description: YE

Passenger Seat Belt Pretensioner

Pin

Wire Color

Function

1

YE/BK

Passenger Pretensioner High

2

YE

Passenger Pretensioner Low

Passenger Seat Belt Switch


Object Number: 334441  Size: CH

Connector Part Information

  • OEM: 90980-11950
  • Service: N/A
  • Description: WH

Passenger Seat Belt Switch

Pin

Wire Color

Function

1

WH/BK

Ground

2

BK

Seat Belt Warning Lamp Signal Circuit

Passenger Seat Belt Warning Lamp


Object Number: 1489465  Size: CH

Connector Part Information

  • OEM: 90980-11986
  • Service: N/A
  • Description: WH

Passenger Seat Belt Warning Lamp

Pin

Wire Color

Function

1

RD/WH

Warning Lamp Feed Circuit

2

RD/WH

Ignition Voltage

3

GY

Warning Lamp ON Control Circuit

4

D-GN

Illumination Feed

5

WH/BK

Ground

6

PK

Warning Lamp Control Circuit

Passenger Seat Occupant Detection Sensor


Object Number: 334441  Size: CH

Connector Part Information

  • OEM: 90980-11950
  • Service: N/A
  • Description: WH

Passenger Seat Occupant Detection Sensor

Pin

Wire Color

Function

1

BU/WH

Seat Belt Warning Lamp Control Circuit

2

BK

Seat Belt Warning Lamp Signal Circuit

SIR Driver Inflatable Module - C1


Object Number: 820231  Size: CH

Connector Part Information

  • OEM: 90980-12138
  • Service: N/A
  • Description: OG

SIR Driver Inflatable Module - C1

Pin

Wire Color

Function

1

YE/BK

Driver Side High

2

YE

Driver Side Low

SIR Driver Inflatable Module - C2


Object Number: 820231  Size: CH

Connector Part Information

  • OEM: 90980-12138
  • Service: N/A
  • Description: BK

SIR Driver Inflatable Module - C2

Pin

Wire Color

Function

1

YE/BK

Driver Side High

2

YE/PU

Driver Side Low

SIR Instrument Panel Module


Object Number: 820245  Size: CH

Connector Part Information

  • OEM: 90980-12160
  • Service: N/A
  • Description: YE

SIR Instrument Panel Module

Pin

Wire Color

Function

1

YE/RD

Passenger Side High

2

YE/GN

Passenger Side Low

3

YE/GY

Redundant Passenger Side High

4

YE/PK

Redundant Passenger Side Low

SIR Left Front Discriminating Sensor


Object Number: 334449  Size: CH

Connector Part Information

  • OEM: 90980-11898
  • Service: N/A
  • Description: YE

SIR Left Front Discriminating Sensor

Pin

Wire Color

Function

1

BN

Driver Sensor Low

2

WH/RD

Driver Sensor High

SIR Left Side Impact Module


Object Number: 334441  Size: CH

Connector Part Information

  • OEM: 90980-11864
  • Service: N/A
  • Description: YE

SIR Left Side Impact Module

Pin

Wire Color

Function

1

YE/RD

Driver Seat High

2

YE/GN

Driver Seat Low

SIR Left Side Impact Sensor


Object Number: 820250  Size: CH

Connector Part Information

  • OEM: 90980-12225
  • Service: N/A
  • Description: YE

SIR Left Side Impact Sensor

Pin

Wire Color

Function

1

PK/BU

VUPL

2

L-GN/BK

SSL High

3

BU/WH

SSL Low

4

GY/BU

ESL

SIR Right Front Discriminating Sensor


Object Number: 334449  Size: CH

Connector Part Information

  • OEM: 90980-11898
  • Service: N/A
  • Description: YE

SIR Right Front Discriminating Sensor

Pin

Wire Color

Function

1

BN/WH

Passenger Sensor Low

2

BK/WH

Passenger Sensor High

SIR Right Side Impact Inflator Module


Object Number: 334441  Size: CH

Connector Part Information

  • OEM: 90980-11864
  • Service: N/A
  • Description: YE

SIR Right Side Impact Inflator Module

Pin

Wire Color

Function

1

YE/RD

Passenger Seat High

2

YE/GN

Passenger Seat Low

SIR Right Side Impact Sensor


Object Number: 820250  Size: CH

Connector Part Information

  • OEM: 90980-12225
  • Service: N/A
  • Description: YE

SIR Right Side Impact Sensor

Pin

Wire Color

Function

1

PK

VUPR

2

L-GN

SSR High

3

BU/YE

SSR Low

4

GY

ESR

SIR Sensing and Diagnostic Module (SDM) - C1


Object Number: 1619220  Size: CH

Connector Part Information

  • OEM: 90980-12391
  • Service: N/A
  • Description: YE

SIR Sensing and Diagnostic Module (SDM) - C1

Pin

Wire Color

Function

1

YE/GY

Passenger Side I/P Module High Signal

2

YE/PK

Passenger Side I/P Module Low Signal

3

YE/GN

Passenger Side I/P Module Low Signal

4

YE/RD

Passenger Side I/P Module High Signal

5

YE/BK

Driver Side I/P Module High Signal

6

YE

Driver Side I/P Module Low Signal

7

YE/OG

Driver Side I/P Module High Signal

8

YE/PU

Driver Side I/P Module Low Signal

9-12

--

Not Used

13

BU/WH

Passenger Presence Sensor Signal

14

BK/YE

Airbag Indicator Signal

15

PK/BK

Diagnostic Signal Request

16

BU/RD

Serial Data Line

17

PK

Passenger Seat Belt/Air Bag Indicator ON/OFF Signal

18-20

--

Not Used

21

BK/OG

Ignition Positive Voltage

22

YE

Fuel Pump Cutoff

23

GY

Passenger Seat Belt/Air Bag Indicator ON/OFF Signal

24

BU

OnStar Data Signal

25

WH/BK

Ground

26

WH/BK

Ground

27

BN/WH

Passenger Right Front Discriminating Low Sensor Signal

28

BN

Passenger Left Front Discriminating Low Sensor Signal

29

BK/WH

Passenger Right Front Discriminating High Sensor Signal

30

WH/RD

Passenger Left Front Discriminating High Sensor Signal

SIR Sensing and Diagnostic Module (SDM) - C2


Object Number: 1619221  Size: CH

Connector Part Information

  • OEM: 90980-12449
  • Service: N/A
  • Description: YE

SIR Sensing and Diagnostic Module (SDM) - C2

Pin

Wire Color

Function

1

YE

Left Seat Belt Pretensioner Low Signal

2

YE/BK

Left Seat Belt Pretensioner High Signal

3-5

--

Not Used

6

L-GN/BK

Left Roof Rail Module Driver Seat Low Signal

7

PK/BU

Left Roof Rail Module Driver Seat High Signal

8

PK

Left Side Impact Sensor Driver Seat Signal

9

YE/RD

Left Side Impact Module Driver Seat High Signal

10

YE/GN

Left Side Impact Module Driver Seat Low Signal

11

GN

Driver Seat Belt Signal

12

RD

Driver Seat Belt Signal

13

RD/BK

Driver Seat Belt Signal

14

GN/WH

Driver Seat Belt Signal

15

GY

Left Side Impact Sensor Driver Seat Signal

SIR Sensing and Diagnostic Module (SDM) - C3


Object Number: 1619223  Size: CH

Connector Part Information

  • OEM: 90980-12450
  • Service: N/A
  • Description: YE

SIR Sensing and Diagnostic Module (SDM) - C3

Pin

Wire Color

Function

1-3

--

Not Used

4

YE/BK

Right Front Pretensioner High

5

YE

Right Front Pretensioner Low

6

YE/GN

Passenger Side Impact Module Seat Low Signal

7

YE/RD

Passenger Side Impact Module Seat High Signal

8

PK

Right Side Impact Sensor Signal

9

GY

Right Roof Rail Module Low Signal

10

BU/YE

Right Roof Rail Module High Signal

11

L-GN

Right Side Impact Sensor Signal

12

BU

Passenger Presence Sensor Communication Signal

13

BU/WH

Passenger Presence Sensor Communication Signal

14-15

--

Not Used