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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.
NOTE: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected.
  1. Ignition OFF, disconnect the harness connectors at the Passenger Presence System.
    NOTE: Some control module ground circuits may require up to 20 minutes after the ignition is turned off before achieving a resistance reading of less than 5 ohms. In most cases the readings will drop below 20 ohms within 1 minute indicating the control module is going to sleep.
  2. Ignition OFF, scan tool disconnected, open and close the driver door and wait 1 minute. Test for less than 5 ohms between the ground circuit terminal 3 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition OFF, verify that a test lamp illuminates between the ignition circuit terminal 2 and ground.
    • If test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, reconnect harness and confirm that DTCs are history, if history clear DTCs.
  5. If DTC is still current, replace the PPS module.
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