navigation ACURA CSX 2006 Service Repair Manual

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Poor AM or FM radio reception or
interference (without navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-199
A
B
NOTE: Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phones).
 Check the connectors for poor connections or loose terminals.
 Check the radio reception in an open area. Compare it to a known-good vehicle when ever possible.Poor
reception/interference can be caused by the
following:
– The radio station is far away.
– Atmospheric conditions are unfavorable.
– Tall buildings, mountains, or high-voltage power lines are nearby.
– Aftermarket metallic wi ndow tint.
1. Turn the ignition switch to ON (II).
2. Do the seek stop test (see page 23-255).
Multipath interference or weak station.
Operation is normal. Go to step 3.
3. Check if the radio reception/interference is the same in several locations.
Go to step 4.
Multipath interference or weak station.
Operation is normal.
4. Start the engine.
5. Check the reception/interference.
Check the antenna and radio grounds. If OK,
check the charging system and the ignition
system. Go to step 6.
6. Turn the ignition switch to LOCK (0). 7. Remove the right side C-pillar trim (see page 20-75).
8. Check the connections from the AM/FM antenna
amplifier to the window antenna.
Repair the connections, or substitute a
known-good AM/FM antenna amplifier and retest.
If the symptom/condition goes away, replace the
original AM/FM antenna amplifier (see page
23-263).
Go to step 9.
9. With the help of an assistant inside the vehicle, have the assistant shine a flashlight (A) along each
antenna wire (B). Check from the outside of the
vehicle for any breaks or openings in the antenna
wires (the light shines through).
Repair the window antenna. Go to AM/FM
antenna repair (see page 23-264), or replace the
rear window (see page 20-47) if the damaged
section is too long.
Go to step 10.
(cont’d)
I s t he t est v ehi cl e w i t hi n 10 % of t he k now n-goodvehicle?
Is t he r ecept i on/ i nt er f er ence t he same?
I s t her e noi se ( st at i c or w hi ne) onl y w i t h t heengi ne r unni ng? Ar e t her e any l oose or d amaged connect i ons?
Ar e t her e any br eak s or cut s i n t he ant enna?
08/08/21 14:09:52 61SNR030_230_0202
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Audio unit power switch will not turn on (No
information display and no sound)
(with navigation)
YES
NO
YES
NO
YES
NO YES
NO
23-202Audio System
Symptom Troubleshooting (cont’d)
NAVIGATION UNIT CONNECTOR A (24P)
ACC RADIO
(PUR) BBACKUP
(WHT)
NOTE:
 Check the vehicle battery condition first.
 Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Push the power switch ON to see if the navigation unit turns ON.
Intermittent failure, the system is OK at this
time.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and No. 35 (7.5 A) fuse in the under-
dash fuse/relay box.
Go to step 5.
Replace the fuse(s), and recheck.
5. Remove the navigation unit (see page 23-355). Check that the navigation unit is properly
connected.
NOTE: Eject all the discs before removing the navigation unit to prevent damaging the CD player’s load
mechanism.
 Remove the PC card before removing the navigation unit.
Go to step 6.
Reconnect the connector, and recheck the
function. 6. Disconnect navigation unit connector A (24P)
7. Turn the ignition switch to ON (II).
8. Measure the voltage between body ground and
navigation unit connector A (24P) terminals No. 14
and No. 24 individually.
Go to step 9.
Repair open in the wire(s) between the No. 23
(10 A) fuse in the under-hood fuse/relay box and
the No. 35 (7.5 A) in the under-dash fuse/relay box
and the navigation unit.
9. Turn the ignition switch to LOCK (0).
10. Reconnect navigation unit connector A (24P).
Wire side of female terminals
Does t he nav i gat i on uni t d i spl ay oper at e pr oper l y , and d oes t he aud i o sound nor mal ?
Ar e t he f uses OK ?
I s i t connect ed pr oper l y ? I s t her e bat t er y v ol t age on bot h t er mi nal s?
08/08/21 14:09:53 61SNR030_230_0205
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YES
NO
YES
NO
YES
NO
YES
NO
Audio unit power switch will not turn on (No
information display and no sound)
(without navigation)
23-20323-203
NAVIGATION UNIT CONNECTOR A (24P)
RADIO GND (BLK)
11. Turn the ignition switch to ON (II).
12. Measure the voltage between navigation unitconnector A (24P) terminal No. 12 and body ground.
Replace the navigation unit (see page 23-355).
Repair open in the wire between navigation
unit connector A (24P) terminal No. 12 and body
ground (G 505) (see page 22-32). NOTE:
 Check the vehicle battery condition first.
 Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Push the power switch ON to see if audio unit turns ON.
Intermittent failure, the system is OK at this
time.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Check the No. 23 (10 A) fuse in the under-hood fuse/relay box and the No. 35 (7.5 A) fuse in the
under-dash fuse/relay box.
Go to step 5.
Replace the fuse(s), and recheck.
5. Remove the audio unit (see page 23-256). Check that the audio unit is properly connected.
NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
Go to step 6.
Reconnect the connector, and recheck the
function.
(cont’d)
Wire side of female terminals
I s t her e l ess t han 0.1 V on bot h t er mi nal s? Does t he aud i o uni t oper at e pr oper l y , and d oes t he
aud i o sound nor mal ?
Ar e t he f uses OK ?I s i t connect ed pr oper l y ?
08/08/21 14:09:53 61SNR030_230_0206
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Audio unit power switch will not turn off
(with navigation)
YES
NO YESNO
23-205
NAVIGATION UNIT CONNECTOR A (24P)
ACC RADIO (PUR)NOTE: Check for aftermarket accessories plugged into the vehicle’s accessory power sockets.
 Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Push the power switch OFF or turn the ignition switch to LOCK (0) to see if the navigation unit
turns OFF.
Operation is normal.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Remove the navigation unit (see page 23-355).
5. Disconnect navigation unit connector A (24P). NOTE: Eject all the discs before removing the navigation unit to prevent damaging the CD player’s load
mechanism.
 Remove the PC card before removing the navigation unit. 6. Measure the voltage between navigation unit
connector A (24P) terminal No. 14 and body ground.
Check for short to power on PUR wire.
Replace the navigation unit (see page 23-355).
Wire side of female terminalsI s t he nav i gat i on uni t OF F ? Is there battery voltage?
08/08/21 14:09:53 61SNR030_230_0208
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Audio unit power switch will not turn off
(without navigation) No sound is heard from the speaker(s)
(display is normal) (with navigation)
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
23-20623-206Audio System
Symptom Troubleshooting (cont’d)
AUDIO UNIT CONNECTOR A (17P)
ACC RADIO (PUR)
NOTE: Check for aftermarket accessories plugged into the vehicle’s accessory power sockets.
 Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Push the power switch OFF or turn the ignition switch to LOCK (0) to see if the audio unit turns OFF.
Operation is normal.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Remove the audio unit (see page 23-256).
5. Disconnect audio unit connector A (17P). NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
6. Measure the voltage between audio unit connector A (17P) terminal No. 14 and body ground.
Check for short to power on PUR wire.
Replace the audio unit (see page 23-256). NOTE:
 Check the vehicle battery condition first.
 Check the connectors for poor connections or loose terminals.
 Set the fader and balance positions to the center.
 Before performing symptom troubleshooting, do the power switch will not turn on troubleshooting
(see page 23-202).
1. Turn the ignition switch to ON (II).
2. Check for sound in each mode (AM, FM, XM, and CD).
Intermittent failure. The system is OK at this
time. Check for loose connections at the navigation
unit and speaker(s).
Go to step 3.
3. Check that the volume button is not set to the min level.
Raise the volume level, and recheck the
function.
Go to step 4.
4. On the steering wheel, check the navigation talk command.
Cancel the navigation talk command by
pressing the navigation BACK button, then recheck
the function.
Go to step 5.
Wire side of female terminals
Is the aud io unit OF F ?
Is there voltage? I s t he sound OK i n each mod e?
Is it at the MIN level?I s t he nav i gat i on t al k command f unct i on set ?
08/08/21 14:09:54 61SNR030_230_0209
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YES
NO
YES
NO
YES
NO
Speaker Terminal Wire color
YES
NO
23-207
NAVIGATION UNIT CONNECTOR A (24P)
5. Check to see if there is a specific speaker that has no sound.
Speaker(s) failed the test:
 If at least one speaker is OK, go to step 6.
 If all speakers fail to sound: – Type S model: Go to step 14.
– Except Type S model: Go to step 9.
Speakers all work, but sound quality is poor in
step 1.
 If sound is poor only with XM radio, or the XM radio does not function, go to poor or no sound
with XM radio (see page 23-249).
 If the sound is poor only with AM or FM, go to poor AM or FM radio reception or interference
(see page 23-196).
 If the sound is poor only with disc. – Try several known- good disc in the navigation
unit.
– If the sound quality is normal, the original disc is faulty.
– If the sound quality is still poor, replace the navigation unit.
 If the sound is poor in all modes, go to sound quality diagnosis (see page 23-251).
6. Turn the ignition switch to LOCK (0).
7. Remove the speaker(s) with no sound (see page 23-259), and disconnect its connector.
8. Check the speaker 2P connector for a loose or poor connection.
Go to step 9.
Operation is normal.
9. Make sure the ignition switch is in LOCK (0). 10. Measure the resistance between terminals No. 1
and No. 2 of the speaker connector.
 Type S model: Go to step 20.
 Except Type S model: Go to step 11. Faulty speaker(s).
11. Remove the navigation unit (see page 23-355). Disconnect navigation unit connector A (24P).
NOTE: Eject all the discs before removing the navigation unit to prevent damaging the CD player’s load
mechanism.
 Remove the PC card before removing the navigation unit.
12. Measure the resistance between the following terminals of navigation unit connector A (24P)
accordingtothetable.
Driver’s door speaker,
Left tweeter A23 ( ) LT GRN
A22 ( ) PNK
Front passenger’s
door speaker,
Right tweeter A19 ( ) GRY
A18 ( ) BRN
Left rear speaker A11 ( ) YEL A10 ( ) BRN
Right rear speaker A7 ( ) BLU A6 ( ) ORN
Go to step 13.
Repair open or short in the wires between
navigation unit and the speaker(s).
(cont’d)
Wire side of female terminals
Do any or al l of t he speak er s f ai l t o sound ?
Reconnect t he speak er 2P connect or , and r echeckthe symptom; does it still f ail? Is t her e about 4 ?
Is t her e about 4 ?
08/08/21 14:09:54 61SNR030_230_0210
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Speaker Terminal Wire color
YES
NO YES
NO
23-208Audio System
Symptom Troubleshooting (cont’d)
NAVIGATION UNIT CONNECTOR A (24P)
STEREO AMPLIFIER CONNECTOR A (20P)
BAUDIO
AMP
(LT GRN)
13. Check for continuity between body ground and the
following terminals of navigation unit connector A
(24P).
Driver’s door speaker,
Left tweeter A23 ( ) LT GRN
A22 ( ) PNK
Front passenger’s
door speaker,
Right tweeter A19 ( ) GRY
A18 ( ) BRN
Left rear speaker A11 ( ) YEL A10 ( ) BRN
Right rear speaker A7 ( ) BLU A6 ( ) ORN
Repair short to body ground in the wire(s)
between the navigation unit and the speaker(s).
Substitute a known-good navigation unit
(see page 23-355), and recheck. If the symptom/
indication goes away, replace the original
navigation unit. 14. Measure the voltage between stereo amplifier
connector A (20P) terminal No. 10 and body ground.
Go to step 15.
Repair open in the wire between the No. 17
(15 A) fuse in the under-hood fuse/relay box and
stereo amplifier connector A (20P) terminal
No. 10.
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is there battery voltage?
08/08/21 14:10:45 61SNR030_230_0211
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YES
NO
YES
NO YES
NO
23-209
STEREO AMPLIFIER CONNECTOR A (20P)
ACC RADIO (PUR)
STEREO AMPLIFIER CONNECTOR B (14P) AMP ON (LT BLU) STEREO AMPLIFIER CONNECTOR A (20P)
GND (BLK)
15. Turn the ignition switch to ON (II).
16. Measure the voltage between stereo amplifierconnector A (20P) terminal No. 9 and body ground.
Go to step 17.
Repair open in the wire between the No. 35
(7.5 A) fuse in the under-dash fuse/relay box and
stereo amplifier connector A (20P) terminal No. 9.
17. Measure the voltage between stereo amplifier connector B (14P) terminal No. 7 and body ground.
Go to step 18.
Repair open in the wire between the stereo
amplifier connector B (14P) terminal No. 7 and
navigation unit connector A (24P) terminal
No. 17. 18. Measure the voltage between stereo amplifier
connector A (20P) terminal No. 20 and body ground.
Go to step 19.
Repair open in the wire between stereo
amplifier connector A (20P) terminal No. 20 and
body ground (G 601).
19. Turn the ignition switch to LOCK (0).
(cont’d)
Wire side of female terminalsWire side of female terminals Wire side of female terminals
Is there battery voltage?
Is there battery voltage? I s t her e l ess t han 0.1 V on bot h t er mi nal s?
08/08/21 14:10:46 61SNR030_230_0212
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Stereo amplifier connector Wire color
YES
NO Navigation
unit connector Stereo
amplifier
connector Wire color
YES
NO
23-211
STEREO AMPLIFIER CONNECTOR B (14P) STEREO AMPLIFIER CONNECTOR B (14P)NAVIGATION UNIT CONNECTOR A (24P)
24. Disconnect navigation unit connector A (24P).
25. Check for continuity between stereo amplifier
connector B (14P) and body ground according to
the table. Then check for continuity between the
same terminals listed in the table and stereo
amplifier connector B (14P) terminal No. 2 (the
harness shield).
B1 BLU
B8 RED
Short in the wire between the stereo
amplifier and the navigation unit. Replace the
affected shielded harness.
Go to step 26. 26. Check for continuity between navigation unit
connector A (24P) and stereo amplifier connector B
(14P) according to the table.
A22 B8 RED
A23 B1 BLU
Go to step 27.
Open in the wire between the navigation unit
and the stereo amplifier. Replace the affected
shielded harness.
(cont’d)
Wire side of female terminals Wire side of female terminalsWire side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:10:46 61SNR030_230_0214
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Stereo amplifier connector Wire color
YES
NO Navigation
unit connector Stereo
amplifier
connector Wire color
YES
NO
23-212 Audio System
Symptom Troubleshooting (cont’d)
STEREO AMPLIFIER CONNECTOR B (14P)
STEREO AMPLIFIER CONNECTOR B (14P)NAVIGATION UNIT CONNECTOR A (24P)
27. Check for continuity between stereo amplifier
connector B (14P) and body ground according to
the table. Then check for continuity between the
same terminals listed in the table and stereo
amplifier connector B (14P) terminal No. 5 (the
harness shield).
B4 BLU
B11 PNK
Short in the wire between the stereo
amplifier and the navigation unit. Replace the
affected shielded harness.
Go to step 28. 28. Check for continuity between navigation unit
connector A (24P) and stereo amplifier connector B
(14P) according to the table.
A16 B11 PNK
A19 B4 BLU
Go to step 29.
Open in the wire between the navigation unit
and the stereo amplifier. Replace the affected
shielded harness.
Wire side of female terminals
Wire side of female terminalsWire side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:10:47 61SNR030_230_0215
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