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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Automatic Transmission - 4T45-E - DTC P0218 To DTC P2764) >> DTC P0722 or P0723 >> 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.
  1. Ignition OFF, disconnect the OSS harness connector.
  2. Test for 1,500-1,900 ohms between the OSS high signal circuit terminal A and OSS low signal circuit terminal B on the OSS.
    • If not within the specified range, replace the OSS.
  3. Test for less than 10 ohms between terminal B of the OSS harness connector and terminal 41 of the TCM connector.
    • If greater than the specified value, check the circuit for an open/high resistance.
  4. Test for less than 10 ohms between terminal A of the OSS harness connector and terminal 16 of the TCM connector.
    • If greater than the specified value, check the circuit for an open/high resistance.
  5. Test for infinite resistance between the OSS harness terminal A and ground, and between terminal B and ground.
    • If not the specified value, check each circuit for a short to ground.
  6. If all circuits test normal replace the TCM.
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