LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1094 (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 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: When removing connectors, inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector:
    • The impact sensor
    • The SDM module
    • The impact sensor wiring harness connector
    • The SDM wiring harness connector
  1. Ignition OFF, disconnect the harness connector at the appropriate impact sensor and the harness connector at the SDM.
  2. Test for infinite resistance between the signal circuit terminal B and ground.
    • If less than the specified range, test the signal circuit for a short to ground.
  3. 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.
  4. Test for less then 1 ohm between the appropriate low reference circuit terminal at the sensor and the appropriate low reference circuit terminal at the SDM:
    • Left Front Sensor - Low Reference circuit terminal A at the sensor and the low reference circuit terminal 38 at the SDM.
    • Right Front End Sensor - Low Reference circuit terminal A at the sensor and the low reference circuit terminal 39 at the SDM.
    • Left Side Sensor - Low Reference circuit terminal A at the sensor and the low reference circuit terminal 40 at the SDM.
    • Right Side Sensor - Low Reference circuit terminal A at the sensor and the low reference circuit terminal 41 at the SDM.
    • If greater than the specified range, test the circuit for an open/high resistance.
  5. Test for less then 1 ohm between the appropriate signal circuit terminal at the sensor and the appropriate signal circuit terminal at the SDM:
    • Left Front Sensor - Signal circuit terminal B at the sensor and the signal circuit terminal 36 at the SDM.
    • Right Front End Sensor - Signal circuit terminal B at the sensor and the signal circuit terminal 37 at the SDM.
    • Left Side Sensor - Signal circuit terminal B at the sensor and the signal circuit terminal 42 at the SDM.
    • Right Side Sensor - Signal circuit terminal B at the sensor and the signal circuit terminal 43 at the SDM.
    • If greater than the specified range, test the circuit for an open/high resistance.
  6. If all circuits test normal, replace the impact sensor.
  7. With a scan tool, clear DTCs and operate the vehicle within the condition for running the DTC. Verify DTC B0084, B0085, or B0086 does not set.
    • If any of the DTCs set, replace the SDM.
scientia non olet · About LEMON Manuals