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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 55 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)TESTING - DIAGNOSTICNOTES
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Testing - Diagnostic: Notes
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1998 GMC Savana Special, 1998 GMC Savana Camper Special, 1998 GMC Savana, 1998 Chevrolet RV Cutaway, and 1998 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Following diagnostic charts are courtesy of General Motors Corp.
DIAGNOSTIC TROUBLE CODE (DTC) CHART
| Trouble Code | Possible Cause |
|---|---|
| B1015 | Passenger Deployment Loop Resistance High |
| B1016 | Passenger Deployment Loop Resistance Low |
| B1017 | Passenger Deployment Loop Open |
| B1018 | Passenger Deployment Loop Short To Ground |
| B1019 | Passenger Deployment Loop Short To Voltage |
| B1021 | Driver Deployment Loop Resistance High |
| B1022 | Driver Deployment Loop Resistance Low |
| B1024 | Driver Deployment Loop Short To Ground |
| B1025 | Driver Deployment Loop Short To Voltage |
| B1026 | Driver Deployment Loop Open |
| B1035 | Discriminating Sensor Closed Or Short To Ground |
| B1036 | Discriminating Sensor Open Or Short To Voltage |
| B1051 | Deployment Commanded |
| B1053 | Deployment Commanded With Loop Malfunction |
| B1061 | SIR Warning Light Malfunction |
| B1071 | Internal SDM Malfunction |
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.