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Circuit/System Testing

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify that DTCs U1826, or U1827 are not set.
  2. Ignition OFF, disconnect the yaw/lateral acceleration sensor connector.
  3. Ignition OFF wait 1 minute, test for less than 10 ohms between the low reference circuit terminal 6 and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuits test normal, replace the EBCM.
  4. Ignition ON, test for B+ between the ignition circuit terminal 1 and ground.
    • If less than the specified value, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
  5. If all circuits test normal, replace the yaw/lateral accelerometer sensor.
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