Acura TSX / Honda Accord CL. Manual — part 658

Fig. 53: Connecting The No. 2 Terminal Of The Blower Motor 2P Connector To Body Ground
With A Jumper Wire

7. Turn the ignition switch ON (II).

Does the blower motor run?

YES: Go to step 8.

NO: Go to step 22 .

8. Turn the ignition switch OFF.

9. Disconnect the jumper wire.

10. Disconnect the power transistor 4P connector.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

11. Check for continuity between the No. 2 terminal of the power transistor 4P connector and body ground.

Is there continuity?

YES: Go to step 12.

NO: Check for an open in the BLK wire between the power transistor and body ground. If
the wire is OK, check for poor ground at G503.

Fig. 54: Checking For Continuity Between The No. 2 Terminal Of The Power Transistor 4P
Connector & Body Ground

12. Connect the No. 2 and No. 4 terminals of the power transistor 4P connector with a jumper wire.

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

Fig. 55: Connecting The No. 2 & No. 4 Terminals Of The Power Transistor 4P Connector With A
Jumper Wire

13. Turn the ignition switch ON (II).

Does the blower motor run at high speed?

YES: Go to step 14.

NO: Repair open in the BLU/BLK wire between the power transistor and the blower motor.

14. Turn the ignition switch OFF.

15. Disconnect the jumper wire.

16. Disconnect climate control unit connector B (16P).

17. Check for continuity between the No. 1 and No. 2 terminals of audio-HVAC display panel connector B

(16P) and body ground individually.

Is there continuity?

YES: Repair any short to body ground in the wire(s) between the audio-HVAC display panel

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX

and the power transistor.

NO: Go to step 18.

Fig. 56: Checking For Continuity Between The No. 1 And No. 2 Terminals Of Audio-HVAC
Display Panel Connector B (16P) & Body Ground

18. Check for continuity between the following terminals of audio-HVAC display panel connector B (16P)

and power transistor 4P connector.

Is there continuity?

YES: Go to step 19.

NO: Repair any open in the wire(s) between the audio-HVAC display panel and the power
transistor.

CONNECTOR CONTINUITY TESTING

Audio-HVAC Display Panel Connector B (16P)
Terminal No.

Power Transistor 4P Connector Ter

1
2

2004 Acura TSX

2004 AUTOMATIC A/C SYSTEMS Climate Control System - TSX