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