SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1677 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0071CIRCUIT/SYSTEM TESTING
2006 Chevrolet Suburban C2500, 6.0 U

Circuit/System Testing

2006 Chevrolet Suburban C2500, 6.0 USECTION Circuit/System Testing
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The seat belt buckle replacement with the seat belt tension sensor must be serviced as a complete unit.
When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
  • Passenger seat belt tension sensor
  • PPS module
  • Passenger seat belt tension sensor wiring harness connector
  • PPS module wiring harness connector
  1. Ignition OFF, disconnect the harness connector at the passenger seat belt tension sensor X2 and inspect the component and harness sides for damage or corrosion.
    • If damage or corrosion is found, repair or replace as necessary.
  2. Ignition ON, test for 4.5-5.5 volts between the passenger seat belt tension sensor voltage reference circuit terminal A X2 and ground.
    • If less that the specified range, test the voltage reference circuit for open/high resistance or a short to ground. If the circuit tests normal, replace the PPS module.
    • If greater that the specified range, test the voltage reference circuit for a short to voltage. If the circuit tests normal, replace the PPS module.
  3. Ignition OFF, remove the AIR BAG BATT Fuse in the underhood fuse block. Test for less than 2.0 ohms between the passenger seat belt tension sensor low reference terminal B X2 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the PPS module.
  4. Ignition OFF, disconnect the harness connector at the PPS module.
  5. Ignition ON, test for infinite resistance between the passenger seat belt tension sensor signal circuit terminal C X2 and ground.
    • If less than the specified value, test the signal circuit for a short to ground.
  6. Ignition ON, test for less than 1 volt between the passenger seat belt tension sensor signal circuit terminal C X2 and ground.
    • If greater than the specified range, test the circuit for a short to voltage
  7. Test for less than 1 ohm between the PPS module signal circuit terminal 6 (-HP2/Z75+HP2) and the passenger seat belt tension sensor terminal C X2.
    • If greater than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the PPS module.
  8. If all circuits test normal, replace the passenger seat belt buckle which includes the seat belt tension sensor.
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.