Honda Accord: Power Transistor Test
1. Remove the passenger's dashboard undercover (see page 20-170).
2. Disconnect the 4P connector from the power transistor.
3. Measure the resistance between terminals No. 3 and No. 4 of the power transistor. It should be about 1.5 kO.
• If the resistance is within the specifications, go to step 4.
• If the resistance is not within the specifications, replace the power transistor.
NOTE: Also check the blower motor. Power transistor failure can be caused by a defective blower motor.
POWER TRANSISTOR
4. Carefully release the lock tab on terminal No. 1 (PUR) (A) in the 4P connector, then remove the terminal and insulate it from body ground.
(To 12 V Power source on vehicle)
5. Reconnect the 4P connector to the power transistor.
6. Make sure the PUR wire is completely isolated, then supply 12 V to cavity No. 1 with a jumper wire.
7 Turn the ignition switch to ON (II), and check that the blower motor runs.
• If the blower motor does not run, replace the power transistor.
NOTE: A faulty blower motor can cause the power transistor to fail. If the power transistor is replaced, also check the blower motor for binding, and replace it if necessary.
• If the blower motor runs, the power transistor is OK.
Evaporator Temperature Sensor Test
NOTE: Before testing the sensor, check for HVAC DTCs
(see page 2 1 - 9).
1. Remove the evaporator temperature sensor (see
page 21-67).
2. Dip the sensor in ice water, and measure the
resistan ...
Air Mix Control Motor Test
NOTE: Before testing the motor, check for HVAC DTCs
(see page 21-9).
1. Disconnect the 7P connector from the air mix control
motor.
Incorrectly applying power and ground to the air mix
contro ...
See also:
Mirror Holder Replacement
NOTE:
- Put on gloves to protect your hands.
- When prying with a flat-tip screwdriver, wrap it with
protective tape to prevent damage.
1. Carefully push on the top edge of the mirror holder ( ...
Trim Removal/Installation - Trunk
Lid
Special Tools Required
KTC Trim Tool Set SOJATP2014*
*Available through the Honda Tool and
Equipment
Program; call 888-424-6857
NOTE:
- Put on gloves to protect your hands. .
- Take care not ...
General Troubleshooting Information
How to Check for DTCs with the HDS
There are three methods used to check for DTCs. The recommended method is to
use the Honda Diagnostic System
(HDS) with the appropriate software, plugged into th ...