GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy Suburban - 2WD 🢒 Restraints 🢒 SIR 🢒 SIR Schematics
Figure 1:

Power, GND and DLC
Object Number: 351784 Size: FS
SIR Components
SIR System Component Description and Definitions
IP Module, Steering Wheel Module and Discriminating Sensor
SIR Caution
SIR Handling Caution
Cell 10: IGN A Fuse and Ignition Switch
Cell 10: ILLUM Fuse
Cell 117: PK LPS Fuse 9, ILLUM Fuse 14, Headlamp and Panel Dimmer Switch (1 of 2)
Cell 10: IGN A Fuse and Ignition Switch
Cell 10: GAUGES Fuse
Handling Electrostatic Discharge Sensitive Parts Notice
Indicator Lamps
Handling Electrostatic Discharge Sensitive Parts Notice
Cell 14: G201, G300, G404
Luxury w/Handset (C250)
Cell 14: G200 (2 of 4)
Cell 14: G200 (1 of 4)
Handling Electrostatic Discharge Sensitive Parts Notice
Figure 2:

IP Module, Steering Wheel Module and Discriminating Sensor
Object Number: 351794 Size: FS
SIR Components
SIR System Component Description and Definitions
Power, GND and DLC
SIR Caution
SIR Handling Caution
Handling Electrostatic Discharge Sensitive Parts Notice
Handling Electrostatic Discharge Sensitive Parts Notice
Cell 14: G201, G300, G404
Cell 14: G202 (1 of 4)
Handling Electrostatic Discharge Sensitive Parts Notice
Shock Sensor, Cargo Door Lock and Seat Belt Switch
Handling Electrostatic Discharge Sensitive Parts Notice