GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Body and Accessories 🢒 Body Control System 🢒 SIR Connector End Views
Table 1: Inflatable Restraint Sensing and Diagnostic Module (SDM)
Table 2: Inflatable Restraint Front End Discriminating Sensor, LH
Table 3: Inflatable Restraint Front End Discriminating Sensor, RH
Table 4: Inflatable Restraint IP Module, (C201)
Table 5: Inflatable Restraint Steering Wheel Module, (C214)

Inflatable Restraint Sensing and Diagnostic Module (SDM)


Object Number: 362757 Size: CH

Connector Part Information
    • 125317746
    • 12-Way F Micro-Pack 100 Series (YEL)

Pin

Wire Color

Circuit No.

Function

1

WHT/BLK

1403

SIR Inflator Feed - Passenger

2

WHT

347

SIR Inflator Feed - Driver

3

DK GRN

348

SIR Inflator Output - Driver

4

DK GRN/WHT

1404

SIR Inflator Output - Passenger

5

TAN

800

Serial Data Signal - UART - 8192 BAUD - Primary

6

BLK/WHT

1851

SIR Ground

7

BRN

358

SIR Indicator Lamp Output

8

BLK/WHT

238

Seat Belt Switch Signal

9

YEL

1834

SIR Forward Sensor Signal

10

YEL

1139

Fuse Output - Ignition 1

11-12

--

--

Not Used

Inflatable Restraint Front End Discriminating Sensor, LH


Object Number: 338009 Size: CH

Connector Part Information
    • 12176650
    • 4-Way F Metri-Pack 280 Series, Sealed (YEL)

Pin

Wire Color

Circuit No.

Function

A

YEL

1834

SIR Forward Sensor Signal

B

YEL

1834

SIR Forward Sensor Signal

C

BLK/WHT

1551

Ground

D

BLK/WHT

1551

Ground

Inflatable Restraint Front End Discriminating Sensor, RH


Object Number: 68712 Size: CH

Connector Part Information
    • 12176650
    • 2-Way F Metri-Pack 280 Series, Sealed (YEL)

Pin

Wire Color

Circuit No.

Function

A

YEL

1834

SIR Forward Sensor Signal

B

BLK/WHT

1551

Ground

Inflatable Restraint IP Module, (C201)


Object Number: 40382 Size: CF

Connector Part Information
    • 12124635
    • 2-Way F Metri-Pack 280 Series (YEL)

Pin

Wire Color

Circuit No.

Function

A

WHT/BLK

1403

SIR Inflator Feed - Passenger

B

DK GRN/WHT

1404

SIR Inflator Output - Passenger

Inflatable Restraint Steering Wheel Module, (C214)


Object Number: 40382 Size: CF

Connector Part Information
    • 12092865
    • 2-Way F Metri-Pack 280 Series, Sealed (YEL)

Pin

Wire Color

Circuit No.

Function

A

WHT

347

SIR Inflator Feed - Driver

B

DK GRN

348

SIR Inflator Output - Driver