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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0083-B0088 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Refer to SIR Service Precautions .
When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
  • Front end sensor
  • SDM module
  • Front end sensor wiring harness connector
  • SDM wiring harness connector
  1. Ignition OFF, disconnect the harness connector at the SDM and the appropriate sensor.
  2. Ignition ON, test for less than 1 volt between the signal circuit terminal B and ground.
    • If greater than the specified range, test the circuit for a short to voltage.
  3. Ignition ON, test for less than 1 volt between the low reference circuit terminal A and ground.
    • If greater than the specified range, test the circuit for a short to voltage.
  4. Test for infinite resistance between the signal circuit terminal B and ground.
    • If less than infinite resistance, test the circuit for a short to ground.
  5. Test for less than 1 ohm between the following signal circuit terminals listed below:
    • Front end sensor terminal B and SDM harness connector terminal 38.
    • Right front side impact sensor terminal B and the SDM harness connector terminal 49.
    • Left front side impact sensor terminal B and the SDM harness connector terminal 46.
    • If greater than the specified range, test the circuit for an open/high resistance.
  6. Test for less than 1 ohm between the following front end sensor low reference circuit terminals listed below:
    • Front end sensor terminal A and SDM harness connector terminal 39.
    • Right front side impact sensor terminal A and the SDM harness connector terminal 48.
    • Left front side impact sensor terminal A and the SDM harness connector terminal 47.
    • If greater than the specified range, test the circuit for an open/high resistance.
  7. If all circuits test normal, replace the appropriate sensor.
  8. Reconnect all SIR components. Ignition ON, with a scan tool clear and check for DTCs.
    • If the DTC returns and is current, replace the SDM.
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