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Power Transistor Test

  1. Disconnect the 5P connector from the power transistor.
  2. Measure the resistance between the No. 1 and. No. 4 terminals of the power transistor. It should be approximately 1.4 - 1.5 kohm.
    • If the resistance is within the specifications go to step 3.
    • If the resistance is not within the specifications replace the power transistor.
    Fig 1: Measuring Resistance Between No. 1 & No. 4 Terminals Of Power Transistor
    G01520143Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Carefully release the lock tab on the No. 3 terminal (ORN/BLK) (A) in the 5P connector then remove the terminal and insulate it from body ground.
    Fig 2: Carefully Releasing Lock Tab On No. 3 Terminal (ORN/BLK) (A) In 5P Connector
    G01520144Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Connect a 1.2 - 3.4 W bulb (B) between the No. 3 and the No. 4 cavity on the 5P connector.
  5. Reconnect the 5P connector to the power transistor.
  6. Turn the ignition switch ON (II) and check that the blower motor runs.
    • If the blower motor does not run replace the power transistor.
    • If the blower motor runs replace the climate control unit.
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