ACURA CSX 2006 Service Repair Manual

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24-11
SRS
Component Location Index
SRS INDICATOR
SIDE AIRBAG
CUTOFF INDICATOR
CABLE REEL
DRIVER’S AIRBAG
FRONT PASSENGER’S AIRBAG
PASSENGER’S AIRBAG CUTOFF INDICATOR
SRS UNIT OPDS SENSOR/SEAT-BACK
FRONT PASSENGER’S
SIDE AIRBAG
FRONT PASSENGER’S
SEAT BELT TENSIONER RIGHT SIDE
IMPACT SENSOR
(FIRST)
ODS UNIT
FRONT PASSENGER’S WEIGHT SENSORS
DRIVER’S SEAT BELT TENSIONER
LEFT SIDE IMPACT SENSOR (FIRST)
DRIVER’S SEAT POSITION SENSOR
DRIVER’S SIDE AIRBAG
DATA LINK
CONNECTOR (DLC) MEMORY ERASE
SIGNAL (MES)
CONNECTOR (2P)
(YELLOW)
FRONT PASSENGER’S SEAT BELT
BUCKLE TENSIONER
DRIVER’S SEAT BELT BUCKLE TENSIONER
(cont’d)
Troubleshooting, page 24-181
Troubleshooting, page 24-183
Replacement, page 24-200
Replacement, page 24-188
Disposal, page 24-196
Replacement, page 24-189
Disposal, page 24-196
Troubleshooting, page 24-184
Bulb Test/Replacement, page 24-212
Replacement, page 24-203 Replacement, page 20-122
Replacement,page 24-191
Disposal, page 24-196
Replacement, page 24-4
Disposal,
page 24-196 Replacement,
page 24-204
Initialization, page 24-26
Calibration, page 24-27
Operation Check, page 24-28
Replacement, page 24-209
Replacement, page 24-207
Replacement, page 24-4
Disposal, page 24-196
Replacement, page 24-204
Operation Check, page 24-29
Replacement, page 24-211
Replacement, page 24-188
Disposal, page 24-196Replacement, page 24-6
Replacement, page 24-6
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24-12SRS
Component Location Index (cont’d)
RIGHT FRONT IMPACT SENSOR
LEFT SIDE CURTAIN AIRBAG
RIGHT SIDE CURTAIN AIRBAG
REAR SAFING SENSOR RIGHT SIDE IMPACT SENSOR (SECOND)
LEFT SIDE IMPACT SENSOR (SECOND)
LEFT FRONT IMPACT SENSOR Replacement, page 24-210
Replacement, page 24-192
Disposal, page 24-196Replacement, page 24-192
Disposal, page 24-196
Replacement, page 24-206 Replacement, page 24-205
Replacement, page 24-205
Replacement, page 24-210
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General PrecautionsSteering-related Precautions
Cable Reel Alignment
24-13
Precautions and Procedures
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).
Please read the following precautions carefully before
servicing the airbag system. If the instructions
described in this manual are not properly followed, or
the airbags could accidentally deploy and cause
damage or injuries. Except when doing electrical inspections, always turn the ignition switch to LOCK (0), disconnect the
negative cable from the battery, then wait at least
3 minutes before starting work.
NOTE: The SRS memory is not cleared even if the
ignition switch is turned to LOCK (0), or the battery
cables are disconnected from the battery.
 Use replacement parts which are manufactured to the same standards and quality as the original parts. Do
not install used SRS parts. Use only new parts when
making SRS repairs.
 Carefully inspect any SRS part before you install it. Do not install any part that shows signs of being
dropped or improperly handled, such as dents, cracks
or deformation.
 Before disconnecting the SRS unit connectors, always disconnect the appropriate SRS parts
connectors.  Use only a digital multimeter to check the system. If it
is not a Honda multimeter, make sure its output is
10 mA (0.01 A) or less when switched to the lowest
value in the ohmmeter range. A tester with a higher
output could cause accidental deployment and
possible injury.
 Do not put objects on the front passenger’s airbag.
 The original audio and navigation system have a coded theft protection circuit. Make sure you have the
anti-theft codes for the audio system or navigation
system (if equipped), then write down the audio
presets before disconnecting the negative cable from
the battery.
 Before returning the vehicle to the client, enter the anti-theft codes for the audio system or navigation
system (if equipped), then enter the audio presets; set
the clock.
 Misalignment of the cable reel could cause an open in the wiring, making the SRS system, remote steering
wheel controls, or the horn inoperative. Center the
cable reel whenever you do the following (see step 6
on page 24-202).
– Installation of the steering wheel
– Installation of the cable reel
– Installation of the steering column
– Other steering-related adjustment or installation
 Do not disassemble the cable reel.
 Do not apply grease to the cable reel.
 If the cable reel shows any signs of damage, replace it with a new one. For example, if the cable reel does
not rotate smoothly, replace it.
(cont’d)
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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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Spring-loaded Lock Connector
Front Airbag Connectors
Disconnecting
ConnectingSide Airbag Connector
Disconnecting
Connecting
24-17
A
B
B
A A
B
A
Some SRS system connectors have a spring-loaded
lock.
To release the lock, pull the spring-loaded sleeve (A)
toward the stop (B) while holding the opposite half of
the connector. Then pull the connector halves apart. Be
sure to pull on the sleeve and not on the connector.
To reconnect, hold the pawl-side connector, and press
on the back of the sleeve-side connector in the direction
shown. As the two connector halves are pressed
together, the sleeve (A) is pushed back by the pawl (B).
Do not touch the sleeve. To release the lock, pull the spring-loaded sleeve (A)
toward the stop (B) while holding the opposite half of
the connector. Then pull the connector halves apart. Be
sure to pull on the sleeve and not on the connector half.
Hold both connector halves, and press them firmly
together until the projection (A) of the sleeve-side
connector cli
cks.
(cont’d)
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Opening the SRS Unit Shorting Connectors
for Diagnosis
Special Tools Required
24-18SRS
Precautions and Procedures (cont’d)
B
070AZ-SAA0100
SRS UNIT
A SRS UNIT CONNECTOR A (28P)
SRS UNIT CONNECTOR B (28P)
SRS short canceller 070AZ-SAA0100
NOTE:
 To prevent damage to the c onnector cavity, insert
short canceller straight into the cavity from the
terminal side.
 Before installing a short canceller, wash it with electrical contact cleaner, then dry it with
compressed air.
 Do not use a short canceller if it is damaged.
 Make sure to remove the short canceller before reconnection.
 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).
When SRS unit connectors A (28P) and B (28P) are
disconnected, a short circuit is automatically created in
the connector by its own function to pr event an airbag
deployment. The circuit may need to be open
sometimes when testing the system. Insert a short
canceller (070AZ-SAA0100) in the specified cavities
when necessary to keep the circuit open for testing. Terminal numbers are shown from the wire side of the
female terminals. Insert the short canceller(s) into the
cavities on the terminal side of connector.
Terminal side of
female terminals Wire side of female terminals
Insert short canceller(s) here.
Wire side of female terminals Insert short canceller(s) here.
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Seats with Side AirbagsDisconnecting System Connectors
Driver’s Airbag
24-19
SIDE AIRBAG
LABEL
A
B
Seats with side airbags have a ‘‘SIDE AIRBAG’’ label on
the seat-back.
 Clean the seats with a damp cloth. Do not soak the seats with liquid. Do not spray steam on the seats.
 Do not repair a torn or frayed seat-back cover. Replace the seat-back cover if it is damaged.
 After a collision in where the side airbag was deployed, replace the side airbag and the seat frame
with new parts. If the seat-back cushion is split, it
must be replaced.
 Never put aftermarket accessories on the seats (covers, pads, seat heaters, lights, etc.). 1. Disconnect the negative cable from the battery,
when wait at least 3 minutes.
2. Remove the access panel (A) from the steering wheel, then disconnect the driver’s airbag 4P
connector (B) from the cable reel.
(cont’d)
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Front Passenger’s Airbag Side Airbag
Side Curtain Airbag
24-20SRS
Precautions and Procedures (cont’d)
A
A
A
3. Remove the lower glove box (see page 20-104),then disconnect the front passenger’s airbag 4P
connector (A) from the dashboard wire harness. 4. Disconnect the driver’s and the front passenger’s
side airbag 2P connectors (A) from the floor wire
harness.
5. Remove the headliner (see page 20-84).
6. Disconnect both floor wire harness 2P connectors (A) from the side curtain airbags.
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