Acura TSX / Honda Accord CL. Manual — part 10

connector A terminal No. 1.

Is there continuity?

YES: Substitute a known-good audio-HVAC display module and retest.

NO: Repair the open in the wire between the audio unit and the antenna amplifier.

Fig. 40: Checking For Continuity Between Audio Unit Connector A (20P) Terminal No. 1 &
Antenna Amplifier Connector A Terminal No. 1

CD DOES NOT LOAD

1. Insert a CD to see if the symptom can be duplicated.

Does the CD load?

YES: Operation is normal. If the CD loads normally, but will not play, go to CD does not
play (see CD DOES NOT PLAY ).

NO: Go to step 2.

2. Insert another CD.

Does the CD load?

YES: The original CD is faulty.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Audio System - TSX

NO: Replace audio-HVAC display module.

RADIO PRESET MEMORY IS LOST

1. Set each of the radio station preset buttons.

Do each of the preset buttons set properly?

YES: Go to step 2.

NO: Replace the audio-HVAC display module.

2. Turn the ignition switch OFF for 1 minute, then turn it back to ON (II).

3. Test all the preset buttons for proper recall operation.

Do the preset buttons recall the set radio stations?

YES: System is normal at this time. Check connections at the audio unit.

NO: Go to step 4.

4. Inspect the under-dash fuse/relay box No. 6 (10A) fuse.

Is it OK?

YES: Go to step 5.

NO: Replace the fuse and reset. If it fails again, repair the short to ground in the harness.

5. Remove the audio-HVAC-display module (see AUDIO-HVAC DISPLAY MODULE

REMOVAL/INSTALLATION ).

6. Turn the ignition switch ON (II).

7. Measure voltage between the audio unit connector A 10 terminal and body ground.

Is there battery voltage?

YES: Go to step 8.

NO: An open wire between the under-dash fuse/relay box and audio unit A10 terminal.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Audio System - TSX

Fig. 41: Measuring Voltage Between The Audio Unit Connector A 10 Terminal & Body
Ground

8. Check for continuity between the audio unit A20 terminal and body ground.

Is there continuity?

YES: Replace the audio-HVAC display module.

NO: An open wire between the audio unit A20 terminal and body ground (G504).

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Audio System - TSX

Fig. 42: Checking For Continuity Between The Audio Unit A20 Terminal & Body Ground

CD DOES NOT PLAY

1. Try loading a CD.

Does the CD load?

YES: Go to step 2.

NO: Go to CD does not load (see CD DOES NOT LOAD ).

2. Insert a CD to see if the symptom can be duplicated.

Does the CD play?

YES: Operation is normal.

NO: Go to step 3.

3. Insert another CD.

Does the CD play?

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Audio System - TSX