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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 6 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0090CONDITIONS FOR SETTING THE DTCNOTES
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Conditions for Setting the DTC: Notes
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Notes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
All of the following conditions must exist for 5 seconds:
B0090 0F
- The SDM received a fault present message from the ROS.
- The ROS is in assembly plant mode and the SDM is in production mode.
- The SDM has not received any data from the ROS.
B0090 3A
- The SDM has received an ID message from the vehicle rollover sensor which does not match the ID stored in the SDM memory.
- The SDM has reset the vehicle rollover sensor twice without detecting the correct ID message.
B0090 39
- The SDM has received a NOK message from the vehicle rollover sensor.
- The SDM has not received a message.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.