ignition ACURA CSX 2006 Service Repair Manual

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23-20Audio System
Circuit Diagram
3
G2 21 G1
SCTY
RADIO
K-LINE
PUR
PUR
UNDER-DASH FUSE/RELAY BOX
AM/FM ANTENNA
UNDER-HOOD FUSE/RELAY BOX
() ()AM/FM ANTENNA LEAD
AM/FM ANTENNA SUBLEAD
G3
ILL A1
RED RADIO ACC
SCTY
RADIO
K-LINE Q8 Q4 Q1 Q14
LT BLU A6 A4 GRN WHT
A17
VSP
ECM/PCM
BLU A14
PUR
MICU
ACC HOT in ACC (I) and ON (II)
ORN RED
WHT
ACC
BAT
IGNITION SWITCH
No. 23 (10 A)
No. 2 (IG) (50 A)
BATTERY
No. 1 (BAT) (100 A)
A10 A13
ILL
AUDIO UNIT or NAVIGATION UNIT
GRY
ANT B
10 k
1.2 k
470
270
100
CH
( DOWN
VOL VOL UP
( MODEBRN
B6
BRN
3.9 k
)
) CH
RED/BLK GRN/RED B7
PNK
GRN SW REMOTE AUDIO
AUDIO
REMOTE
GND
9 4 3
10
AUDIO REMOTE SWITCH
BLK
G505
GND RADIO
A9
No. 14 (7.5 A) FUSE
(In the under-dash
fuse/relay box)
DASH LIGHTS
BRIGHTNESS
CONTROLLER AM/FM
ANTENNA
AMPLIFIER
No.14(7.5A)FUSE
(In the under-dash
fuse/relay box) CABLE
REEL CABLE
REEL
DASH LIGHTS
BRIGHTNESS
CONTROLLER STEREO
AMPLIFIER
LT GRN
STEREO
AMPLIFIER No. 17
(15 A)
D1
D4 C2
G2 No. 35
(7.5 A)
(Type S model)
VSPA29 (Type S model)
RADIO B
BRN
VOICE
CONTROL
SWITCH
J3
(With navigation)
RF
SH
RF
IN
2
1
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Without Navigation
Serial Number Display Mode
Eight digits of the serial number (example 12345678)
23-23
Self-diagnostic Function
A
The audio system has a self-diagnostic function.
To obtain the audio unit serial number on a vehicle, do the following:
NOTE: This procedure can only be performed when the battery power is disconnected from the audio unit and the audio unit displays CODE.
 To obtain the navigation unit serial number, refer to Navi ECU in the navigation system diagnostic mode (see page 23-135).
1. Turn the ignition switch to ON (II).
2. Make sure the audio system is turned off.
3. Push and hold the preset No. 1 and No. 6 buttons.
4. While holding the buttons, push the VOL PUSH PWR knob (A) to ON.
5. Release the buttons and the self-diagnostic begins.
6. The display shows a 8 digit serial number.
7. Use all 8 numbers as the serial number when using the Interactive Network (iN) to retrieve the 5 digit anti-theft code.
8. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).
(cont’d)
08/08/21 14:03:50 61SNR030_230_0026
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How to check for audio system condition
No. 3 button
No. 4 button
No. 5 button
FM button (Push and hold 5 sec.)
CD button (Push and hold 5 sec.)
23-24Audio System
Self-diagnostic Function (cont’d)
A
NOTE:
 The audio unit must be in the code enter screen before performing the self-diagnostic function.
 The self-diagnostic function does not find every problem with the audio system. Check any official H onda service
website for more information about the audio system.
1. Turn the ignition switch to ON (II).
2. Make sure the audio system is turned off.
3. Push and hold the preset No. 1 and No. 6 buttons.
4. While holding the buttons, push the VOL PUSH PWR knob (A) to ON.
5. Release the buttons and the self-diagnostic begins.
6. When you are in the self-diagnostic mode, pressing a preset button starts the diagnostic mode that is assigned to that preset switch.
Entire LCD lighting/light-out mode: Turns on/off the entire LCD to show the presence or absence of an LCD failure.
The entire display must appear. If there are dead segments, replace the audio unit.
Duty indication mode (for the Illumination dim): Indicates the duty for the Illumination dim when the dash lights
are on.
Vehicle speed pulse indication mode: Indicates the vehicle speed pulse.
Reception level check mode: Indicates the reception level (dB). When entering the reception level check mode, the
AM/FM button is used to change the main/sub antenna. See reception level indication for more information.
DRAM residual quantity indication mode: Indicates the DRAM residual quantity.
08/08/21 14:03:50 61SNR030_230_0027
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ÎDisplay Specifications
Speaker check mode
23-25
Entry LCD Lighting
No. 3 button Entry LCD Lights-outs
No. 3 button
Duty (for the illumination) indication
No. 4 button
Vehicle speed pulse indication
No. 5 button
Reception level indication
FM button
DRAM residual quantity indication
CD button
7. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).
8. Turn off the audio unit.
9. Push and hold the No. 1 and No. 3 buttons. While holding the buttons, push the VOL push PWR knob to ON. Release the buttons and the speaker check mode begins. A low-frequency hum should sound for about one
minute. Change the test speaker by pushing the SKIP button. If you find a speaker(s) with no sound, check the
speaker and harness connections. If the connections are good, replace the speaker, and retest.
10. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).
(cont’d)
08/08/21 14:03:51 61SNR030_230_0028
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Reception level indication mode
Preperation:
23-26Audio System
Self-diagnostic Function (cont’d)
This diagnostic screen checks the audio unit’s reception l
evel. This level then can be used in the diagnosis of audio
unit reception quality. The reception level is displayed in decibels (dB)
 Pank the vehicle outdoors in an appropriate location for good radio reception.
 Tune to a powerful local FM radio station then write down the radio station number. 1. Enter the reception level indication mode in the self-dia gnostic function. The AM/FM antenna amplifier is on
(A. SEL or TP is not displayed in the audio-HVAC display).
2. Tune to the FM radio station you wrote down preperation using the T UNING knob, and note the decibel level of
that station when you release the button.
3. Press and release the A. SEL button to turn the AM/FM antenna amplifier off (A. SEL or TP is now displayed in the audio-HVAC display).
4. Tune to the FM radio station you wrote down in preperation using the T UNING knob, and note the decibel level of
that station when you release the button.
5. Press and release the A. SEL button to turn the AM/FM antenna amplifier back on (A. SEL or TP is not displayed in the audio-HVAC display).
6. Turn the ignition switch to LOCK (0) or audio unit off to exit the test mode.
7. Compare your results to a known-good (make sure it is the same year and trim level) in the same location and
direction, and under the same environmental conditions.
08/08/21 14:03:51 61SNR030_230_0029
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Poor AM or FM radio reception or
interference (with navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-29
Symptom Troubleshooting
A
B
NOTE:
 Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phone).
 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 23-78).
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 23-87).
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 23-87), or replace the rear
window (see page 20-47).
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 14:04:37 61SNR030_230_0032
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YES
NO
YES
NO
YES
NO
YES
NO
23-30Audio System
Symptom Troubleshooting (cont’d)
AM/FM ANTENNA AMPLIFIER 3P CONNECTOR
ANT B AM/FM ANTENNA AMPLIFIER 3P CONNECTOR
ANT B
NAVIGATION UNIT CONNECTOR G (3P)
AM/FM ANTENNA AMPLIFIER 3P CONNECTOR ANT B
ANT B
10. Remove the navigation unit (see page 23-155).Check that the antenna lead is properly connected.
Go to step 11.
Reconnect the connector, and recheck the
function.
11. Disconnect the AM/FM antenna lead 3P connector from the AM/FM antenna amplifier (see page 23-87).
12. Turn the ignition switch to ON (II).
13. Turn on the navigation unit.
14. Measure the voltage between the AM/FM antenna lead connector terminal No. 3 at the AM/FM
antenna amplifier and body ground.
Go to step 19.
Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Disconnect navigation unit connector G (3P). 17. Check for continuity between the AM/FM antenna
amplifier 3P connector terminal No. 3 and body
ground.
Repair short to body ground in the wire
between the navigation unit and the AM/FM
antenna amplifier.
Go to step 18.
18. Check for continuity between navigation unit connector G (3P) terminal No. 3 and the AM/FM
antenna amplifier 3P connector terminal No. 3.
Substitute a known-good navigation unit
(see page 23-155), and recheck.
Repair open in the wire between the
navigation unit and the AM/FM antenna
amplifier.
Terminal side of female terminals Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
I s i t connect ed pr oper l y ?
Is there battery voltage? Is there continuity?
Is there continuity?
08/08/21 14:04:37 61SNR030_230_0033
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YES
NO
YES
NO YES
NO
YES
NO
23-31
NAVIGATION UNIT CONNECTOR G (3P)
RF IN
NAVIGATION UNIT CONNECTOR G (3P) RF IN
RF SH AM/FM ANTENNA AMPLIFIER 3P CONNECTOR
NAVIGATION UNIT CONNECTOR G (3P)
RF SHRF SH
AM/FM ANTENNA AMPLIFIER 3P CONNECTOR NAVIGATION UNIT CONNECTOR G (3P)
RF INRF IN
19. Turn the ignition switch to LOCK (0).
20. Disconnect navigation unit connector G (3P).
21. Check for continuity between navigation unit connector G (3P) terminal No. 1 and body ground.
Replace the AM/FM antenna lead and/or
sublead.
Go to step 22.
22. Check for continuity between navigation unit connector G (3P) terminals No. 1 and No. 2.
Replace the antenna lead and/or sublead.
Go to step 23. 23. Check for continuity between navigation unit
connector G (3P) terminal No. 2 and the AM/FM
antenna amplifier 3P connector terminal No. 2.
Replace the antenna lead and/or sublead.
Go to step 24.
24. Check for continuity between navigation unit connector G (3P) terminal No. 1 and the AM/FM
antenna amplifier 3P connector terminal No. 1.
Replace the AM/FM antenna amplifier
(see page 23-87), and recheck. If the reception is
still poor, replace the navigation unit (see page
23-155).
Replace the AM/FM antenna lead and/or
sublead.
Terminal side of female terminals
Terminal side of female terminals Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
Is there continuity?
Is there continuity? Is there continuity?
Is there continuity?
08/08/21 14:04:38 61SNR030_230_0034
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Poor AM or FM radio reception or
interference (without navigation)
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
23-32
Audio System
Symptom Troubleshooting (cont’d)
AA
B
NOTE:
 Check the vehicle battery condition first.
 Check for aftermarket accessories plugged into the vehicle accessory power sockets (including cell
phone).
 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 23-78).
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 23-87).
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 23-87), or replace the rear
window (see page 20-47).
Go to step 10.
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 14:04:38 61SNR030_230_0035
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YES
NO
YES
NO
YES
NO
YES
NO
23-33
AM/FM ANTENNA AMPLIFIER 3P CONNECTOR
ANT B AM/FM ANTENNA AMPLIFIER 3P CONNECTOR
ANT B
AUDIO UNIT CONNECTOR G (3P)
AM/FM ANTENNA AMPLIFIER 3P CONNECTOR ANT B
ANT B
10. Remove the audio unit (see page 23-80). Check thatthe antenna lead is properly connected.
Go to step 10.
Reconnect the connector, and recheck the
function.
11. Disconnect the antenna cable 3P connector from the AM/FM antenna amplifier (see page 23-87).
12. Turn the ignition switch to ON (II).
13. Turn on the audio unit.
14. Measure the voltage between the AM/FM antenna lead connector terminal No. 3 at the AM/FM
antenna amplifier and body ground.
Go to step 19.
Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Disconnect audio unit connector G (3P). 17. Check for continuity between the AM/FM antenna
amplifier connector (3P) terminal No. 3 and body
ground.
Repair short to body ground in the wire
between the audio unit and the AM/FM antenna
amplifier.
Go to step 18.
18. Check for continuity between audio unit connector G (3P) terminal No. 3 and the AM/FM antenna
amplifier 3P connector terminal No. 3.
Substitute a known-good audio unit
(see page 23-80), and recheck.
Repair open in the wire between the audio
unit and the AM/FM antenna amplifier.
(cont’d)
Terminal side of female terminals Terminal side of female terminals
Terminal side of female terminals
Terminal side of female terminals
I s i t connect ed pr oper l y ?
Is there battery voltage? Is there continuity?
Is there continuity?
08/08/21 14:04:39 61SNR030_230_0036
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