ECU ACURA CSX 2006 Service Repair Manual

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23-356Navigation System
Navigation Unit Removal/Installation (cont’d)
A
B B
C A
BC
4. Remove the center pocket hole lid and bolts, then
pull out the center panel (A).
5. Disconnect the connectors (B) and air hose (C), then remove the center panel. 6. Remove the screws, brackets (A), and the
navigation unit (B) from the center panel (C).
7. Install the navigation unit in the reverse order of removal and make sure all connectors are secure.
8. Turn the ignition switch to ON (II), then reinstall the client’s original DVD, verifying than the DVD is free
of scratches or smudges.
9. Check any official Honda service website for more service information about the navigation system.
NOTE: Simply transferring the DVD from the
original navigation unit to the new navigation unit
does not assure the correct software for the vehicle
will be loaded into the new navigation unit. Doing
the DVD transfer without doing software patches
may cause the new navigation unit to appear to be
malfunctioning.
10. Enter the new navigation anti-theft code.
11. Park the vehicle outside, and do the GPS initialization (see page 23-268).
12. Give the new navigation anti-theft code to the client.
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Rear center
In-vehicle
24-10Seat Belts
Inspection (cont’d)
40 °
40 °40 °
40 °
15 ° 15 °
15 °
15 °
A Inside Front
3. Replace the seat belt with a new assembly if there
is any abnormality. Do not disassemble any part of
the seat belt for any reason. 1. Check that the seat belt is not twisted or caught on
anything.
2. After installing the anchors, check for free movement on the anchor bolts. If necessary,
remove the anchor bolts and check that the
washers and other parts are not damaged or
improperly installed.
3. Check the seat belts for damage or discoloration. Clean with a shop towel if necessary. Use only
soap and water to clean the seat belts.
NOTE: Dirt build-up in the loops of the upper
anchors can cause the seat belts to retract slowly.
Wipe the inside of the loops with a clean cloth
dampened in isopropyl alcohol.
4. Check that the seat belt does not lock when pulled out slowly. The seat belt is designed to lock only
during a sudden stop or impact.
5. Make sure that the seat belt will retract automatically when released.
6. For front passenger’s seat belt and all rear seat belts, check the seat belt retractor locking
mechanism automatic locking retractor (ALR). This
function is for securing child seats.
–1 Pull the seat belt all the way out to engage the ALR. The seat belt should retract with a
ratcheting sound, but not extend. This is
normal.
–2 To disengage the ALR, release the seat belt and allow it to fully retract, then pull the seat belt
out part-way. The seat belt should retract and
extend normally.
7. Replace the seat belt with a new assembly if there is any abnormality. Do not disassemble any part of
the seat belt for any reason.
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Airbag Handling and Storage
24-14
SRS
Precautions and Procedures (cont’d)
A
C
BC
Do not disassemble an airbag. It has no serviceable
parts. Once an airbag has been deployed, it cannot be
repaired or reused.
For temporary storage of an airbag during service,
observe the following precautions.
 Store the removed airbag with the pad surface up. Never put anything on the airbag.
 To prevent damage to the airbag, keep it away from any oil, grease, detergent, or water.
 Store the removed airbag on a secure, flat surface away from any high heat source (exceeding 200 °F/
93 °C).  Never perform electrical inspections to the airbags,
such as measuring resistance.
 Do not position yourself in front of the airbag during removal, inspection, or replacement.
 For proper disposal of a damaged airbag, refer to airbag disposal (see page 24-196).
 The side curtain airbag module assembly is a long, jointed part containing an inflator (A), a flexible bag
(B), and brackets (C). When removing or installing the
side curtain airbag assembly, never:
– Handle the flexible bag.
– Drop the airbag assembly.
– Cut, tear, or unwrap the taps strips.
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SRS Unit, Front and Side Impact Sensors,
Driver’s Seat Position Sensor, Front
Passenger’s Weight Sensors and, Rear
Safing Sensor
24-15
NOTE: Some systems store data in memory that is lost
when the battery is disconnected. Before disconnecting
the battery, refer to Battery Terminal Disconnection and
Reconnection (see page 22-68).
 Turn the ignition switch to LOCK (0), disconnect the negative cable from the battery, then wait at least 3
minutes before starting installation or replacement of
the SRS unit, or disconnecting the connectors from
the SRS unit.
 Be careful not to bump or impact the SRS unit, the front impact sensors, the side impact sensors, or the
rear safing sensor whenever the ignition switch is in
ON (II), or for at least 3 minutes after the ignition
switch is turned to LOCK (0).
 During installation or replacement, be careful not to bump (by impact wrench, hammer, etc.) the area
around the SRS unit, the front impact sensors, the
side impact sensors, or the rear safing sensor. The
airbags could accidentally deploy and cause damage
or injury.  After a collision where the front airbag, the side
airbag, or a the seat belt tensioner, the seat belt
buckle tensioner deployed, go to Component
Replacement/Inspection after Deployment (see page
24-185). After a collision where an airbag did not
deploy, inspect for any damage or any deformation
on the SRS unit, the front impact sensors, the side
impact sensors, or the rear safing sensor. If there is
any damage, replace the SRS unit and/or the sensors.
 Do not disassemble the SRS unit, front impact sensors, side impact sensors, driver’s seat position
sensor, front passenger’s weight sensors or rear
safing sensor.
 Always install the SRS unit, driver’s seat position sensor, and all impact sensors and the rear safing
sensor securely with new TORX bolts torqued to 9.8
N·m (1.0 kgf·m, 7.2 lbf·ft).
 Do not spill water or oil on the SRS unit or the any of the sensors, and keep them away from dust.
(cont’d)
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Wiring Precautions
Precautions for Electrical Inspections
24-16SRS
Precautions and Procedures (cont’d)
Some of the SRS wiring can be identified by a special
yellow outer covering, and the SRS connectors can be
identified by their yellow color. Observe the following
instructions:
 Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage to the SRS wiring,
replace the harness.
 Be sure to install the harness wires so they do not get pinched or interfere with other parts.
 Make sure all SRS ground locations are clean, and grounds are securely fastened for optimum metal-to-
metal contact. Poor grounds can cause intermittent
problems that are difficult to diagnose.
 Do not use any silicone based cleaners or lubricants on any SRS connectors or terminals.  When using electrical test equipment, insert the
probe of the tester into the wire side of the connector.
Do not insert the probe of the tester into the terminal
side of the connector, and do not tamper with the
connector.
 Use backprobe adapter 07TAZ-001020A. Do not insert the probe forcibly.
 Use specified service connectors in troubleshooting. Using improper tools could cause a diagnostic error
due to poor metal-to-metal contact.
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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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Checking Front Passenger’s Weight Sensors
After a Vehicle Collision
24-25
A
10. Shake the related wire harnesses and theconnectors, and look for loose connections, poor
pinfits, and poor grounds.
11. Take a test-drive (quick acceleration, quick braking, and cornering), turn the steering wheel fully left
and right, and hold it there for 5 to 10 seconds. If
the problem recurs, the SRS indicator will come on.
12. If you cannot duplicate the concern, ask the client about the conditions when it occurred, or ask the
client to demonstrate the concern.
13. If you cannot duplicate the intermittent failure, the system is OK at this time. 1. Position the front passenger’s seat to the rearmost
position, adjust the seat-back to the forwardmost
position. Do not move it from this position.
2. Drive the vehicle, accelerate to 20 mph (36 km/h), then stop on level ground.
3. Make sure the ignition switch is in LOCK (0).
4. Connect the HDS to the data link connector (DLC) (A).
5. Turn the ignition switch to ON (II).
6. Make sure the HDS communicates with the vehicle and the SRS unit. If does not communicate,
troubleshoot the DLC circuit (see page 11-204).
7. From the SRS inspection menu, select Seat Weight Sensor, then Misc test, then SEAT OUTPUT CHK
and follow the prompts until the front passenger’s
weight sensor operation check is complete.
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Removal Installation
24-188SRS
Driver’s Airbag Replacement
A
B
A
B
C
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)
A
B
A B
NOTE: If replacing the driver’s airbag after deployment,
refer to Component Replacement/Inspection After
Deployment (see page 24-185) for a complete list of
other parts that must also be replaced.
1. Do the battery terminal disconnection procedure (see page 22-68), then wait at least 3 minutes
before starting work.
2. Remove the access panel (A) from the steering wheel, then disconnect the driver’s airbag 4P
connector (B) from the cable reel.
3. Using a TORX T30 bit, remove the two TORX bolts (A) and discard them.
4. Disconnect the horn switch connector (1P), then remove the driver’s airbag (B). 1. Connect the horn switch connector (1P) (A) to the
driver’s airbag.
2. Place the driver’s airbag (B) in the steering wheel, and secure it with new TORX bolts (C).
3. Connect the driver’s airbag 4P connector (A) to the cable reel 4P connector, then install the access
panel (B) on the steering wheel.
4. Do the battery terminal reconnection procedure (see page 22-68).
5. Clear any DTCs (see page 24-23).
6. After installing the airbag, confirm proper system operation:
 Turn the ignition switch to ON (II); the SRS indicator should come on for about 6 seconds
andthengooff.
 Make sure the horn works.
Replace.
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Removal Installation
24-191
Side Airbag Replacement
AB
A
B
6.3 N·m
(0.64 kgf·m, 4.65 lbf·ft)
NOTE: If replacing the side airbag after deployment,
refer to Component Replacement/Inspection After
Deployment (see page 24-185) for a complete list of
other parts that must also be replaced. 1. Do the battery terminal disconnection procedure (see page 22-68), then wait at least 3 minutes
before starting work.
2. Remove the seat assembly (see page 20-118) and seat-back cover (see page 20-123).
3. Remove the mounting screws (A) and the side airbag (B). NOTE:
 If the side airbag lid is secured by tape, remove the tape.
 Do not open the lid of the side airbag cover.
 Use new mounting screws tightened to the specified torque. When you replace a side airbag, make sure
that the seat-back cover is installed properly.
Improper installation may prevent proper
deployment.
 Be sure to install the harness wires so that they are not pinched or interfering with other parts.
1. Place the side airbag on the seat-back frame (A). Install new side airbag mounting screws (B).
2. Install the seat-back cover in the reverse order of removal (see page 20-123).
3. Install the seat assembly (see page 20-118).
4. Move the front seat and the seat-back through their full ranges of movement, making sure the harness
wires are not pinched or interfering with other parts.
5. Do the battery terminal reconnection procedure (see page 22-68).
6. Clear any DTCs (see page 24-23).
7. After installing the side airbag, confirm proper system operation: Turn the ignition switch to ON
(II); the SRS indicator should come on for about
6 seconds and then go off.
Replace.
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Special Tools Required
Driver’s Airbag
Front Passenger’s Airbag
Side Airbag
Side Curtain Airbag
Deploying Airbags in the Vehicle
24-196
SRS
Airbag and Tensioner Disposal
A
B
A
A
A
Deployment tool 07HAZ-SG00500
Before scrapping any airbags, side airbags, side curtain
airbags, seat belt tensioners, or seat belt buckle
tensioner (including those in a whole vehicle to be
scrapped), the part(s) must be deployed. If the vehicle is
still within the warranty period, the Honda District Parts
and Service Manager must give approval and/or special
instructions before deploying the part(s). Only after the
part(s) have been deployed (as the result of vehicle
collision, for example), can they be scrapped.
If the parts appear intact (not deployed), treat them with
extreme caution. Follow this procedure.
If an SRS equipped vehicle is to be entirely scrapped, its
airbags, side airbags, side curtain airbags, seat belt
tensioners, and seat belt buckle tensioner should be
deployed while still in the vehicle. These parts should
not be considered as salvageable parts and should
never be installed in another vehicle.1. Turn the ignition switch to LOCK (0), then disconnect the negative cable from the battery,
then wait at least 3 minutes before starting work.
2. Confirm that each airbag, side airbag, side curtain airbag, seat belt tensioner, or seat belt buckle
tensioner is securely mounted.
3. Confirm that the deployment tool is functioning properly by following the check procedure on the
tool label.
4. Remove the access panel (A) from the steering wheel, then disconnect the driver’s airbag 4P
connector (B) from the cable reel. 5. Remove the glove box, then disconnect the front
passenger’s airbag 4P connector (A) from the
dashboard wire harness.
6. Disconnect the side airbag 2P connector (A) from the floor wire harness.
7. Disconnect the floor wire harness 2P connector from the side curtain airbag (A).
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