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Home >> Acura >> 2001 >> 3.2CL Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Automatic A/C Systems) >> Power Transistor Test
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Power Transistor Test

WARNING: This page is about a different car, the 2003 Acura 3.2CL and 2002 Acura 3.2CL. However, it is still accessible from the selected car via links, so may be relevant.
  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 about 1.4 - 1.5 k Ω.
    • 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 Power Transistor Resistance
    G01165308Courtesy 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: Testing Power Transistor
    G01165309Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Reconnect the 5P connector to the power transistor.
  5. Supply 12 volts to the No. 3 cavity with a jumper wire.
  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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