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Rear Power Transistor Test

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the right rear side trim panel (see TRIM REMOVAL/INSTALLATION - REAR SIDE AREA ).
  2. Disconnect the 4P connector from the power transistor.
  3. Measure the resistance between the No. 3 and No. 4 terminals of the rear power transistor. It should be about 1.5 k ohm.
    • If the resistance is within the specifications, go to step 4.
    • If the resistance is not within the specifications, replace the rear power transistor.
    Fig 1: Measuring Resistance Between 3 And 4 Terminals Of Rear Power Transistor
    G03706521Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Carefully release the lock tab on the No. 1 terminal (BLU/YEL) (A) in the 4P connector, then remove the terminal and insulate it from body ground.
    Fig 2: Releasing Lock Tab On No. 1 Terminal (BLU/YEL) In 4P Connector
    G03706522Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Reconnect the 4P connector to the rear power transistor.
  6. Make sure the BLU/YEL wire is completely isolated, then supply 12 volts to the No. 1 cavity with a jumper wire.
  7. Turn the ignition switch ON (II), and check that the rear blower motor runs.
    • If the rear blower motor does not run, replace the power transistor.
    • If the rear blower motor runs, the power transistor is OK.
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