Power Transistor Test
- Disconnect the 4P connector from the power transistor.
- Measure the resistance between the No. 1 and No. 2 terminals of the power transistor. It should be about 1.5 kΩ.
- If the resistance is within the specifications, go to step 3.
- If the resistance is not within the specifications, replace the power transistor.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Carefully release the lock tab on the No. 4 terminal (BLU/YEL) (A) in the 4P connector, then remove the terminal and insulate it from body ground.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
- Reconnect the 4P connector to the power transistor.
- Make sure the BLU/YEL wire is completely isolated, then supply 12 volts to the No. 4 cavity with a jumper wire.
- 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, the power transistor is OK.