Rear Blower Power Transistor Test: Test
Before testing the rear blower power transistor, check for HVAC control DTCs or climate control DTCs - Refer to: How to Troubleshoot the Body Electrical, or How to Troubleshoot the Climate Control System .
- Driver's Side Center Console Side Cover - Remove
- Rear Blower Power Transistor - Test
1. Disconnect the rear blower power transistor connector. 2. Measure the resistance between terminals No. 2 and No. 4 of the rear blower 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 rear blower power transistor - Refer to: Blower Power Transistor Removal and Installation,
or Rear Blower Power Transistor Removal and Installation
.NOTE:
Also check the rear blower motor. Rear blower power transistor failure can be caused by a defective rear blower motor.
3. Reconnect the rear blower power transistor connector.
4. Disconnect climate control unit connector A (32P). 5. Connect climate control unit connector A (32P) terminals No. 1 and No. 30 with a jumper wire.
6. Turn the vehicle to the ON mode.
7. Check that the rear blower motor runs.
- If the rear blower motor does not run, replace the rear blower power transistor - Refer to: Blower Power Transistor Removal and Installation,
or Rear Blower Power Transistor Removal and Installation
.NOTE:
A faulty rear blower motor can cause the rear blower power transistor to fail. Before replacing the rear blower power transistor, check the rear blower motor for binding, and replace the rear blower motor if necessary - Refer to: Blower Motor Removal and Installation, or Rear Blower Motor Removal and Installation .
- If the rear blower motor runs, the rear blower power transistor is OK.
- All Removed Parts - Install
1. Install the parts in the reverse order of removal.