Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedFACTORY OEM SERVICE PROCEDURE
Supplemental Inflatable Restraint System
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - SIR
- DTC B0012 or B0013
- DTC B0014-B0045
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- B0015 01, B0016 01, B0019 01, B0020 01, B0022 01, B0023 01, B0040 01
- B0015 02, B0016 02, B0019 02, B0020 02, B0022 02, B0023 02, B0040 02
- B0015 04, B0016 04, B0019 04, B0020 04, B0022 04, B0023 04, B0040 04
- B0015 0D, B0016 0D, B0019 0D, B0020 0D, B0022 0D, B0023 0D, B0040 0D
- B0015 0E, B0016 0E, B0019 0E, B0020 0E, B0022 0E, B0023 0E, B0040 0E
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Testing
- Repair Procedures
- DTC B0052 or B0053
- DTC B0074
- DTC B0081
- DTC B0083-B0088
- DTC B0090
- DTC B0091
- DTC B0098
- DTC B1001 (ROS)
- DTC B1001 (SDM)
- DTC B1019
- DTC B1370
- Passenger Presence System Rezeroing
- Passenger Presence System Preload Test
- Symptoms - SIR
- Air Bag Indicator Circuit Malfunction
- Passenger Presence System Indicator Circuit Malfunction
- SIR Disabling and Enabling
- Repair Instructions
- SIR Service Precautions
- Inflatable Restraint Front End Sensor Replacement
- Inflatable Restraint Vehicle Rollover Sensor Replacement
- Inflatable Restraint Sensing and Diagnostic Module Replacement
- Inflatable Restraint Steering Wheel Module Replacement
- Inflatable Restraint Steering Wheel Module Coil Replacement
- Inflatable Restraint Steering Wheel Module Coil Centering
- Inflatable Restraint Instrument Panel Module Replacement
- Inflatable Restraint Seat Position Sensor Replacement
- Inflatable Restraint Passenger Presence System Replacement - Front
- Inflatable Restraint Side Impact Sensor Replacement - Front
- Inflatable Restraint Side Impact Sensor Replacement - Left Side Rear
- Inflatable Restraint Side Impact Sensor Replacement - Right Side Rear (with E24)
- Inflatable Restraint Side Impact Sensor Replacement - Right Side Rear (with YA2)
- Inflatable Restraint Instrument Panel Module Indicator Replacement
- Inflatable Restraint Instrument Panel Module Disable Switch Replacement
- Roof Side Rail Inflatable Restraint Module Replacement - Front
- Roof Side Rail Inflatable Restraint Module Replacement (without YA2)
- Inflatable Restraint Roof Side Rail Rear Module Replacement (with YA2)
- Seat Belt Buckle Pretensioner Replacement
- Repairs and Inspections Required After a Collision
- Inflator Module Handling and Scrapping
- Pretensioner Handling and Scrapping
- Description and Operation
- SIR System Description and Operation
- SIR System Overview
- Frontal SIR System Description
- Side SIR System Description (Front)
- Inflatable Restraint Sensing and Diagnostic Module (SDM)
- Inflatable Restraint Passenger Presence System (PPS)
- Inflatable Restraint Seat Position Sensors (SPS)
- Inflatable Restraint Passenger Seat Belt Tension Sensor
- Inflatable Restraint Vehicle Rollover Sensor
- AIR BAG Indicator
- Inflatable Restraint PASSENGER AIR BAG ON/OFF Indicator
- Dual Stage Inflator Modules
- Inflatable Restraint Steering Wheel Module Coil
- Inflatable Restraint Front End Sensors
- Inflatable Restraint Side Impact Sensor (SIS)
- Inflatable Restraint Wiring Harnesses
- Seat Belt Pretensioner
- Steering Wheel and Column
- Driver and Passenger Knee Bolsters
- SIR System Description and Operation
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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