Acura TSX / Honda Accord CL. Manual — part 671

Fig. 97: Evaporator Temperature Sensor Test

2. Then pour warm water on the sensor, and check for a change in resistance.

3. Compare the resistance readings with the specifications shown in the graph; the resistance should be

within the specifications.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

Fig. 98: Evaporator Temperature Sensor Resistance Graph

EVAPORATOR TEMPERATURE SENSOR REPLACEMENT

Disconnect the 2P connector (A) from the evaporator temperature sensor (B), then remove the connector clip
(C). Remove the self-tapping screw, and carefully pull out the evaporator temperature. Install the sensor in the
reverse order of removal.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

Fig. 99: Removing Evaporator Temperature Sensor

POWER TRANSISTOR TEST

1. Disconnect the 4P connector from the power transistor.

2. Measure the resistance between the No. 3 and No. 4 terminals of the power transistor. It should be about

1.4-1.5 kohm.

z

If the resistance is within the specifications, go to step 3.

z

If the resistance is not within the specifications, replace the power transistor.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

Fig. 100: Measuring The Resistance Between The No. 3 & No. 4 Terminals Of The Power
Transistor

3. 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.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX