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Home >> Chevrolet >> 2005 >> Cobalt SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC 065 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. 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 PPS module
    • The SDM module
    • The PPS wiring harness connector
    • The SDM wiring harness connector
  1. Ignition OFF, disconnect the PPS module connector.
  2. Test the PPS sensor signal circuit for a short to ground, a high resistance, or an open. Verify that a short to ground, a high resistance, or an open does not exist.
    • If any of the above conditions are found make the appropriate repair.
  3. Test the PPS sensor low reference circuit for a short to ground, a short to voltage, a high resistance, or an open. Verify that a short to ground, a short to voltage, a high resistance, or an open does not exist.
    • If any of the above conditions are found make the appropriate repair.
  4. Test the PPS sensor 5-volt reference circuit for a short to ground, a short to voltage, a high resistance, or an open. Verify that a short to ground, a short to voltage, a high resistance, or an open does not exist.
    • If any of the above conditions are found make the appropriate repair
  5. Ignition ON, engine OFF test the PPS sensor signal circuit with a DMM. Measure the voltage of the PPS sensor circuit harness side and ground. The voltage should read 0.05-4.5 volts.
    • If the voltage is more than 5 volts test the PPS sensor signal circuit for a short to voltage. If the circuit tests good replace the PPS.
  6. Reconnect all PPS components. Use the scan tool to clear all PPS DTCs. Refer to Passenger Presence System Flash Code Procedures . Rezero the PPS, refer to Passenger Presence System Rezeroing . Verify DTC 065 does not exist.
    • If DTC 065 reset replaced the PPS.
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