Engine air ACURA CSX 2006 Service Repair Manual

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Without navigation
23-25623-256Audio System
Sound Quality Diagnosis (cont’d) Audio Unit Removal/Installation
10. Turn the ignition switch to LOCK (0).
11. Start the engine in the known-good vehicle, and
then do steps 4 thru 10 on the known-good vehicle.
12. Compare the number of stations received in steps 6 and 9 in the client’s vehicle with the number of
stations received in the known-good vehicle.
 If the number of stations received is the same, or within 10 %, the audio unit’s tuner performance
is OK. The problem may be atmospheric
conditions, multi path interference, or other
obstructions to the radio signal.
 If the customer’s vehicle receives fewer stations by at least 10 %, go to step 2 of poor AM or FM
radio reception of interference, with navigation
(see page 23-196), wit hout navigation (see page
23-199). SRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
NOTE:
 Put on gloves to protect your hands.
 Take care not to scratch the dashboard and related parts.
 Lay a workshop towel under the parts when working on them to protect the face panel from scratches or
other damage.
 Do not work in a dusty or dirty place.
 Discharge static electricity from your body before and during the work.
 Do not touch the circuit board(s) with your bare hands.
 Do not work with dirty hands.
 Be careful not to fold the flat plate cable.
 Do not touch the terminal connector of the flat plate cable with your bare hands (If you have touched it,
wipe it off thoroughly.).
 Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player’s load
mechanism.
 If you are replacing the audio unit, write down the audio presets (if possible), and enter them into the
new audio unit.
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Without navigation
23-25623-256Audio System
Sound Quality Diagnosis (cont’d) Audio Unit Removal/Installation
10. Turn the ignition switch to LOCK (0).
11. Start the engine in the known-good vehicle, and
then do steps 4 thru 10 on the known-good vehicle.
12. Compare the number of stations received in steps 6 and 9 in the client’s vehicle with the number of
stations received in the known-good vehicle.
 If the number of stations received is the same, or within 10 %, the audio unit’s tuner performance
is OK. The problem may be atmospheric
conditions, multi path interference, or other
obstructions to the radio signal.
 If the customer’s vehicle receives fewer stations by at least 10 %, go to step 2 of poor AM or FM
radio reception of interference, with navigation
(see page 23-196), wit hout navigation (see page
23-199). SRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
NOTE:
 Put on gloves to protect your hands.
 Take care not to scratch the dashboard and related parts.
 Lay a workshop towel under the parts when working on them to protect the face panel from scratches or
other damage.
 Do not work in a dusty or dirty place.
 Discharge static electricity from your body before and during the work.
 Do not touch the circuit board(s) with your bare hands.
 Do not work with dirty hands.
 Be careful not to fold the flat plate cable.
 Do not touch the terminal connector of the flat plate cable with your bare hands (If you have touched it,
wipe it off thoroughly.).
 Eject all the discs before removing the audio unit to prevent damaging the CD/DVD player’s load
mechanism.
 If you are replacing the audio unit, write down the audio presets (if possible), and enter them into the
new audio unit.
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General Operation
Anti-theft Feature
Symptom Diagnosis
Self-Inertial Navigation LimitationsGlobal Positioning System (GPS) Limitations
23-266Navigation System
General Troubleshooting Information
Refer to the navigation system manual for the
navigation system operating procedures.
The navigation system and audio unit have a coded
theft protection circuit. Make sure you have the anti-
theft security code before:
 Disconnecting the battery.
 Disconnecting the navigation unit connector A (24P) and C (8P).
 Removing the No. 23 (10 A) fuse from the under-hood fuse/relay box.
After service, reconnect power to the navigation unit,
and turn the ignition switch to ON (II). Enter the 4-digit
anti-theft security code, then select Done.
If the code cannot be found, use the interactive Network
(iN) to look it up. You can view the serial number in one
of the ECU Info diagnostic screens (see page 23-305).
Alternatively, you can find the serial number on the
underside label which is located on the navigation unit
in the trunk.
When replacing the navigation unit, be sure to give the
customer the new anti-theft security code.
Certain circumstances and system limitations will result
in occasional vehicle positioning errors. Some client’s
may think this indicates a problem with the navigation
system when, in fact, the system is normal. Keep the
following items in mind when interviewing client’s
about symptoms of the navigation system.
The limitations of the self-inertial portion of the
navigation system (the yaw rate sensor and the vehicle
speed signal) can cause discrepancies between the
vehicle’s actual position and the indicated vehicle’s
position (GPS vehicle position). The following circumstances may cause vehicle
positioning errors:
 Moving the vehicle with the engine stopped and the vehicle stopped, such as by ferry or tow truck, or if
the vehicle is spun on a turn table.
 Tire slippage, changes in tire rolling diameters, and some driving situations may cause discrepancies in
travel distances. Examples of this include:
– Continuous tire slippage on a slippery surface
– Driving with snow chains mounted
– Abnormal tire pressure
– Incorrect tire size
– Frequent lane changes across a wide highway
– Continuous driving on a straight or gently curving highway
– Very bumpy roads
 Tolerances in the system and map inaccuracies sometimes limit how precisely the vehicle’s position
is indicated. Examples of this include:
– Driving on roads not shown on the map (map matching is not possible)
– Driving on a road that winds in one direction, such as a loop bridge, an interchange, or a spiral parking
garage
– Driving on a road with a series of sharp hair-pin turns
– Driving near a gradual highway exit or transition
– Driving on one of two close parallel roads
– Making many 90 degree turns
The GPS cannot detect the vehicle’s position or
elevation during the following instances:  For the first 5 to 10 minutes after reconnecting the battery (this process can take as long as 45 minutes).
 When the satellite signals are blocked by tall buildings, mountains, tunnels, large trees, inside
parking structures or large trucks.
 When the GPS antenna is blocked by metallic window tinting or by an object placed above it in the
vehicle. The GPS antenna requires a clear
unobstructed view of the sky.
 When there is no satellite signal output (signal output is sometimes stopped for sate llite servicing).
 When the satellite signals are blocked by the operation of some electronic aftermarket accessories
including, but not limited to non-OEM in-dash
entertainment units (radio, CD players/changers,
radar detectors and theft recovery systems) and cell
phones placed near the navigation system.
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How to Identify Navigation DVD Versions,
and How to Inspect A DVD for Damage
23-271
To determine the navigation version on a particular
model, start the engine, then locate the navigation unit.
Open the DVD door, and push the eject button to eject
the DVD. Hold the DVD by the edges, and check for
these items: Check any official Acura service website for more service information about the navigation DVDs.
 The DVD label color.
 Read the DVD version on the label, and note it on the repair order. The version number is near the bottom
of the label text (for example, ver: 4.23A). You will
need this version number:
– To verify that the DVD version is appropriate for the vehicle. Check any official Honda service website
for more service information.
– Any time you call Tech Line regarding a navigation system issue.
– To answer client inquires concerning update or coverage issue.
NOTE: Client’s may obtain DVDs from sources
outside the normal ordering process. If you
determine this is the case, recommend that your
customer purchase the appropriate DVD from the
Acura Disc Fulfillment Center (see ORDERING A
DVD).
– Check the underside of the DVD for signs of mishandling. Deep scratches, or random scratches,
light swirl marks, or fingerprints can cause random
lock-ups, reboots, erratic voice response, erratic
positioning errors, and DVD read or format errors.
NOTE: A damaged DVD is not covered under
warranty unless the disc is damaged by the
navigation unit. Damage by the navigation unit
typically appears as circular scratches caused by
something rubbing against the DVD as it spins. The
damage may appear as arcs or complete circles on
the DVD reading surface.
– Verify that the underside of the DVD is silver, and not a copy with a blue color. Copies will not work
properly and can cause other symptoms that mimic
hardware problems.  Incorrectly colored DVDs being put into navigation
vehicles. This causes the system to either display
error messages, or causes system malfunctions that
mimic a hardware problem. This results in the client
leaving with a malfunctioning navigation system.
 The DVD version provided to the client is out-of date or incompatible with a particular model. This
inconveniences your client by delaying the repair, or
by causing additional (and unnecessary) returns to
your dealership.
 The client experiences bugs or other issues that have already been resolved in later versions currently
available at the fulfillment desk.
If the DVD is defective, or has any of the issues
mentioned above, return the vehicle to your client and
recommend that they order the proper DVD from the
Acura Disc Fulfillment Center.
NOTE: Navigation DVDs do not come with replacement
navigation units. If you are replacing a navigation unit
because it is defective (following appropriate service
manual troubleshooting), and the DVD does not eject,
order a DVD. See Obtaining a navigation DVD.
(cont’d)
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Icon
Colors Description
23-298Navigation System
System Diagnostic Mode (cont’d)
The System Links function runs automatically and
displays a flashing message at the bottom of the
screen reminding you to have the engine running
for the test. The diagnostic tests the following:
 Most of the wires connecting the navigation components shown in the block diagram.
 The results from the various components shown in the block diagram.
 The microphone is tested by listening to the bong sound produced by the navigation unit from the
speakers when the diagnostic is started. This
requires that the audio system be operating
normally.
When the diagnostic finishes, the icons turn
different colors based on their test status. The color
definitions are shown below and can also be seen
by selecting Help on the System Links screen.
The indication on the screen may not change until
you exit and reenter the Self-Diagnosis mode. In
some cases, you may have to restart the engine for
the indication to change. After you repair the
affected component or harness, repeat this
diagnostic. Explanation of each icon
Each icon color is explained in the table below.
Green The system ran a diagnosis and the results are OK.
Red Errors that require replacement of hardware or harness. Examples
are connection error or memory
diagnosis errors. Troubleshooting
for DTCs.
Yellow Errors that doesn’t require hardware replacement, such as an
open display cover, an incorrect
DVD, leaving the vehicle in
ACCESSORY (I), or because of a
missing accessory, like the
rearview camera.
White The diagnosis is running. The screen functions are locked out
while the diagnosis is runs.
Gray The system cannot automatically check this function. You have to
select the diagnosis item and
manually do additional testing,
like checking the navigation
buttons in the Hard Key test.
When you complete the Hard Key
test and return to the System
Links menu, the gray icon turns
green.
NOTE: By selecting the HELP icon, you can see a
description for each color.
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••••••
••• •••
••• •••
••• ••• •••
••• •••
••• •••
Icon Color Information
Icon Icon Color
GREEN REDYELLOW WHITEGRAY
23-299
DisplayResult of
Connection
under the
Display
diagnosis menu
is OK. Result of
Connection
under the
Display
diagnosis menu
is NG. Executing (Not
completed)
Radio Result of
Connection
under the Radio
diagnosis menu
is OK. Result of
Connection
under the Radio
diagnosis menu
is NG. Executing (Not
completed)
XM Result of
Connection
under the XM
diagnosis menu
is OK. Result of
Connection
under the XM
diagnosis menu
is NG. Executing (Not
completed)
GPS Ant. All result of Antenna and
Receiver in NAVI
ECU is OK.Any result of
Antenna and
Receiver in NAVI
ECU is OK. Executing (Not
completed)
R-Camera Result of Connection
under the R-
Cammera
diagnosis menu
is OK. (optional)Result of
Connection
under the R-
Cammera
diagnosis menu
is NG. (optional)Result of the
Connection
under the R-
Cammera
diagnosis menu
is NG. (optional)Executing (Not
completed)
A/C Result of
Connection
under the Aircon
diagnosis menu
is OK. Result of
Connection
under the Aircon
diagnosis menu
is NG. Executing (Not
completed)
HFL Result of
Connection
under the HFL
diagnosis menu
is OK. Result of
Connection
under the HFL
diagnosis menu
is NG. Executing (Not
completed)
: DTC 2703 can be stored when the ignition switch is in ACCESSORY (I). With the ignition switch in ACCESSORY (I), the climate control unit is turned off and the navigation unit loses communication and
stores DTCs. It is possible that the system is normal with DTC 2703 stored. Check the system links with the
engine running, and if it shows normal, the system is OK at this time.
(cont’d)
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´µ ´µ
Î
Î Î
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Î
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µ
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µ
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Hard Key
Yaw Sensor DVD
Aircon
HFL
23-308Navigation System
System Diagnostic Mode (cont’d)
Hard KeyReturn
Return
ZOOM OUT ZOOM IN
CANCEL SET UP MAP
MENU INFO
MODE CH
CH
VOL
VOL
FF
REW
RPT RDM
SEEK UP SCAN
AUDIO
CD/AUX
AM/FMSKIP
SKIP
SEEK DOWN Keep Pushing to Return.
Yaw Sensor
Zero Point Output OK OK
Output Value x.xxxV
Current Offset x.xxxV
Temperature in ECU xx°C
Return
Return
ReturnDVD
Error Detail -
Version 20050404
Maker ID 0x01
Navi Platform 0x01
Connection OK Aircon
HFL
Connection OK
This diagnostic screen checks the status of each of the
hard buttons surrounding the navigation display. When
you press each hard button, the corresponding item on
the screen should flash blue. Touch the return key, or
press and hold the joystick to exit.
NOTE: It is normal for the VOL ( , ) CH ( , ) and
MODEbuttontobeinactive.
This screen gives a quick test of the yaw sensor
functionality based on the two voltages Sensor and
Offset. For more information see the Yaw Rate
Diagnostic. This diagnostic tests the navigation DVD reader.
This diagnostic tests the climate bus connection (AC-SI
and AC-SO) between the navigation unit and climate
control unit. Make sure the engine is running for this
test.
 This checks the 4 wire communication bus between the HFL and the navigation.
 When connection is shown with NG, check the connection between the navigation unit and the
HandsFreeLink control unit.
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µ
µ µ
µ
DTC 2702: DTC 2703:
YES
NO
YES
NO
23-33123-331
GPS Diag: Receiver in Navi ECUAircon Diag
NOTE:
 Check the vehicle battery condition first.
 Before you troubleshoot, make sure to follow the general troubleshooting information (see page
23-266).
 Make sure the vehicle is parked outside, away from buildings.
 Check for electronic aftermarket accessories (possibly hidden) mounted near the GPS antenna or
the navigation unit.
1. Clear the hard error code (see page 23-274).
2. Turn the ignition switch to LOCK (0), and then back to ON (II).
3. Go into the Diagnostic Menu, and Select the Self- Diagnosis Mode in the Select Diagnosis Items
Menu (see page 23-297).
4. Select the System Links, then select the GPS Ant.
Intermittent failure, the system is OK at this
time.
Replace the navigation unit (see page 23-355). NOTE:
 Check the vehicle battery condition first.
 Check for B-CAN DTCs and resolve them before troubleshooting.
 Before you troubleshoot, make sure to follow the general troubleshooting information (see page
23-266).
 DTC 2703 can be stored when the ignition switch is at ACCESSORY (I). With the ignition switch is in
ACCESSORY (I), the climate control unit is turned off
and the navigation unit loses communication and
stores DTCs. Therefore, there is a possibility that the
system is normal even DTC 2703 is stored. Check
system links (see page 23-297) with the engine
running, and if it shows normal, the system is OK at
this time. If not, do this troubleshooting.
1. Clear the hard error code (see page 23-274).
2. Turn the ignition switch to LOCK (0), and then back to ON (II).
3. Go into the Diagnostic Menu, and Select the Self- Diagnosis Mode in the Select Diagnosis Items
Menu (see page 23-297).
4. Check the System Links.
Go to step 5.
Intermittent failure, the system is OK at this
time.
5. Turn the ignition switch to LOCK (0).
(cont’d)
Is Receiver in Navi ECU OK indicated? Is the Air con icon r ed?
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Clear the DTC Memory Using MES
Connector Without the HDSTroubleshooting Intermittent Failures
Special Tools Required
24-24SRS
General Troubleshooting Information (cont’d)
B
A
07PAZ-001010A
SCS Service Connector 07PAZ-001010A
NOTE: Make sure the battery is fully charged before
you begin.
To clear the DTCs from the SRS unit, use the HDS or the
following procedure. 1. Make sure the ignition switch is in LOCK (0).
2. Connect the SCS service connector (A) to the yellow MES 2P connector (B). Do not use a jumper
wire.
3. Turn the ignition switch to ON (II).
4. The SRS indicator will come on for about 6 seconds, and then go off. Remove the SCS service connector
from the MES connector (2P) within 4 seconds after
the indicator goes off.
5. The SRS indicator will come on again. Reconnect the SCS service connector to the MES connector
(2P) within 4 seconds after the indicator comes on.
6. When the SRS indicator goes off, remove the SCS service connector from the MES connector (2P)
within 4 seconds.
7. The SRS indicator blinks two times, indicating that the memory has been cleared.
8. Turn the ignition switch to LOCK (0).
9. Turn the ignition switch to ON (II) again. If the SRS indicator comes on for 6 seconds, and then goes off,
the system is OK. If the indicator stays on,
troubleshoot the DTC, refer to symptom
troubleshooting. If there was a malfunction, but it does not recur, it will
be stored in the memory as an intermittent failure, and
the SRS indicator may come on depending on this
malfunction detected.
NOTE:
 Check the condition of the battery (see page 22-67) and the charging system (see page 4-23). Low battery
voltage may cause some intermittent failures.
 A faulty or damaged cable reel can cause intermittent problems related to the driver’s airbag inflator DTCs.
After checking the DTC, troubleshoot as follows: 1. Make sure the ignition switch is in LOCK (0).
2. Connect the HDS to the data link connector (DLC).
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the vehicle and the SRS unit. If it does not communicate,
troubleshoot the DLC circuit (see page 11-204).
5. In the SRS MENU on the HDS, select SRS, then DTC to clear DTCs.
6. Read the DTC (see ‘‘Reading the DTC’’).
7. Clear the DTC memory(see ‘‘Clear the DTC’’).
8. Set the parking brake, then start the engine, and let it idle.
9. The SRS indicator comes on for about 6 seconds and then goes off.
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Î
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24-41
(With seat heater)
RED/GRN
BLK/GRN
1
2 7 7
GRN* GRN : Shielding
G602
GRN*
RED*
GRN*
BRN* LT BLU*
ORN*
BLU*
LT GRN* YEL*
GRY* LT GRN* PUR*
GRN*
BRN*
LT BLU*
YEL* LT GRN*
BLU*
LT BLU*
LT BLU*
BRN* GRN* RED*
C203
28
16
27 3
421
15 1
221
2P 2P
2 5BLK RED
41
1
6 14
16
15
3
2
1
BLK RED GRN3P
1
2
3
3P 4P 4P
2
1 12 12
3
3
78 4
4
3
4
A 4
3
910
SRS UNIT
B 1211
GRN RED BLK
4P
1
2
ON:
BUCKLED ON:
UN-
BUCKLED
DRIVER’S
SEAT
BELT
BUCKLE
SWITCH FRONT
PASSENGER’S
AIRBAG
FIRST
INFLATOR
FRONT
PASSENGER’S
AIRBAG
SECOND
INFLATOR
DRIVER’S
AIRBAG
FIRST
INFLATOR
DRIVER’S
AIRBAG
SECOND
INFLATOR
CABLE
REEL
DASHBOARD
WIRE HARNESS
ON:
UN-
BUCKLED ON:
BUCKLED
From
ODS
UNIT
JUNCTION
CONNECTOR
DRIVER’S
SEAT
POSITION
SENSOR DRIVER’S
SEAT
WIRE HARNESS
FLOOR
WIRE
HARNESS FLOOR
WIRE
HARNESS
RIGHT
FRONT
IMPACT
SENSOR
LEFT
FRONT
IMPACT
SENSOR
ENGINE
COMPARTMENT
WIRE
HARNESS
DASHBOARD
WIRE
HARNESS FLOOR
WIRE
HARNESS
UNDER-DASH
FUSE/RELAY BOX
DRIVER’S
SEAT POSITION
SENSOR HARNESS
C602
C604 Q E
BLU or BRN wire color
can be used for the SRS circuits
that have a * mark
FRONT
PASSENGER’S
SEAT
BELT
BUCKLE
SWITCH
LA1
LA1
LFS LFS RFS RFS
LBSO LBSC
SS SS ODS
RA1
RA1 LA2
LA2
RBSC RBSO
RA2
RA2 :CANline
a
(cont’d)
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