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Home >> Chevrolet >> 2007 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.9L - DTC P0010 To DTC P0353 >> DTC P0069 >> Component Testing
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Component Testing

IMPORTANT: You must perform the Circuit/System Testing before proceeding with the Component Test.
  1. Turn ON the ignition with the engine OFF and remove the affected sensor.
  2. Install a 3-amp fused jumper wire between the 5-volt reference terminal C of the sensor and 5-volt reference.
  3. Install a jumper wire between the low reference terminal of the sensor and ground.
  4. Install a jumper wire at the signal terminal sensor.
  5. Connect a DMM between the jumper wire from terminal of the sensor and ground.
  6. Install the J 23738-A  to the sensor vacuum port. Slowly apply vacuum to the sensor while monitoring the voltage on the DMM. The voltage should vary between 5.2-0 volts without any spikes or dropouts.
    • If the voltage is not within the specified range or is erratic, replace the affected sensor.
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