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Component Testing

NOTE: You must perform the Circuit/System Testing before proceeding with the Component Test.
  1. Ignition ON, engine OFF, remove the BARO sensor.
  2. Install a 3A fused jumper wire between the 5V reference terminal 1 of the sensor and 5V reference.
  3. Install a jumper wire between the low reference terminal 2 of the sensor and ground.
  4. Install a jumper wire at the signal terminal 3 of the BARO sensor.
  5. Connect a DMM between the jumper wire from terminal 3 of the sensor and ground.
  6. Install the J 35555:  Metal Mityvac to the BARO sensor vacuum port. Slowly apply vacuum to the sensor while monitoring the voltage on the DMM. The voltage should vary between 5.2-0V, without any spikes or dropouts.
    • If the voltage is not within the specified range or is erratic, replace the BARO sensor.
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