Acura TSX / Honda Accord CL. Manual - part 705

5. Turn ignition switch to OFF position. Connect SRS Simulator Lead "H" (07YAZ-S3AA100) and SRS

inflator simulator (07SAZ-TB4011A) to floor wire harness connector. Measure resistance between SRS
unit connector "B", terminals No. 19 and 20. If resistance is less than one ohm, fault exists in side impact
sensor or SRS unit. Replace side impact sensor. If problem still is present, replace SRS unit. If resistance
is more than one ohm, replace floor wire harness.

DTC 44-1

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Erase Diagnostic Trouble Code (DTC)

memory. See ERASING DIAGNOSTIC TROUBLE CODE MEMORY under DIAGNOSTICS. Turn
ignition switch to ON position. If AIR BAG warning light stays on, go to next step. If AIR BAG warning
light goes off after about 6 seconds, system is okay at this time. Check for intermittent malfunction. See
TROUBLESHOOTING INTERMITTENT FAILURES under DIAGNOSTICS.

2. Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM . Access and check

for poor connection between SRS right floor harness connector and right side impact sensor. See SIDE
IMPACT SENSORS under REMOVAL & INSTALLATION. If connection is okay, go to next step. If
connection is faulty, repair poor connection as necessary and retest. If AIR BAG warning light stays on,
go to next step.

3. Disconnect right and left seat belt pretensioners. See SEAT BELT PRETENSIONERS under

REMOVAL & INSTALLATION. See Fig. 8 . Disconnect SRS right floor connector from right side
impact sensor. Disconnect SRS unit connector "B" from SRS unit. See SRS UNIT under REMOVAL &
INSTALLATION. See Fig. 33 . Measure resistance between SRS unit connector "B", terminals No. 25
and 26. If resistance is at least one megohm, go to next step. If resistance is less than one megohm,
replace floor wire harness. See WIRING DIAGRAMS .

4. Reconnect negative battery cable. Turn ignition switch to ON position. Measure voltage between ground

and SRS unit connector "B", terminals No. 25 and 26. If voltage is less than one volt, go to next step. If
voltage is more than one volt, replace floor wire harness.

5. Turn ignition switch to OFF position. Connect SRS Simulator Lead "H" (07YAZ-S3AA100) and SRS

inflator simulator (07SAZ-TB4011A) to floor wire harness connector. Measure resistance between SRS
unit connector "B", terminals No. 25 and 26. If resistance is less than one ohm, fault exists in side impact
sensor or SRS unit. Replace side impact sensor. If problem still is present, replace SRS unit. If resistance
is more than one ohm, replace floor wire harness.

DTC 45-1

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Erase Diagnostic Trouble Code (DTC)

2. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG

SYSTEM. Access left rear impact sensor and check for poor connection between SRS left floor harness
connector and left rear impact sensor. See REAR IMPACT SENSORS under REMOVAL &
INSTALLATION. If connection is okay, go to next step. If connection is faulty, repair poor connection as
necessary and retest. If AIR BAG warning light stays on, go to next step.

3. Access and disconnect left side curtain air bag module connector from side curtain air bag subharness.

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

See SIDE CURTAIN AIR BAG MODULES under REMOVAL & INSTALLATION. Disconnect left
rear impact sensor connector from side curtain air bag subharness. Disconnect SRS unit connector "C"
from SRS unit. See SRS UNIT under REMOVAL & INSTALLATION. See Fig. 33 . Measure resistance
between SRS unit connector "C", terminals No. 9 and 10. If resistance is at least one megohm, go to next
step. If resistance is at less than one megohm, replace side curtain air bag subharness.

4. Reconnect battery and turn ignition on. Measure voltage between ground and SRS unit connector "C",

terminals No. 9 and 10. If voltage is less than one volt, go to next step. If voltage is more than one volt,
replace side curtain air bag subharness.

5. Turn ignition off. Connect SRS Simulator Lead (07YAZ-S3AA100) and SRS Inflator Simulator (07SAZ-

TB4011A) to subharness side of left rear impact sensor connector. Measure resistance between SRS unit
connector "C", terminals No. 9 and 10. If resistance is one ohm or less, replace left rear impact sensor. If
problem persists, replace SRS unit. If resistance is more than one ohm, replace side curtain air bag
subharness.

DTC 46-1

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Erase Diagnostic Trouble Code (DTC)

2. Disable air bag system. See DISABLING SYSTEM under DISABLING & ACTIVATING AIR BAG

SYSTEM. Access right rear impact sensor and check for poor connection between SRS right floor
harness connector and right rear impact sensor. See REAR IMPACT SENSORS under REMOVAL &
INSTALLATION. If connection is okay, go to next step. If connection is faulty, repair poor connection as
necessary and retest. If AIR BAG warning light stays on, go to next step.

3. Access and disconnect right side curtain air bag module connector from side curtain air bag subharness.

See SIDE CURTAIN AIR BAG MODULES under REMOVAL & INSTALLATION. Disconnect right
rear impact sensor connector from side curtain air bag subharness. Disconnect SRS unit connector "C"
from SRS unit. See SRS UNIT under REMOVAL & INSTALLATION. See Fig. 33 . Measure resistance
between SRS unit connector "C", terminals No. 15 and 16. If resistance is at least one megohm, go to
next step. If resistance is at less than one megohm, replace side curtain air bag subharness.

4. Reconnect battery and turn ignition on. Measure voltage between ground and SRS unit connector "C",

terminals No. 15 and 16. If voltage is less than one volt, go to next step. If voltage is more than one volt,
replace side curtain air bag subharness.

5. Turn ignition off. Connect SRS Simulator Lead (07YAZ-S3AA100) and SRS Inflator Simulator (07SAZ-

TB4011A) to subharness side of right rear impact sensor connector. Measure resistance between SRS unit
connector "C", terminals No. 15 and 16. If resistance is one ohm or less, replace right rear impact sensor.
If problem persists, replace SRS unit. If resistance is more than one ohm, replace side curtain air bag
subharness.

DTC 61-1

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Turn ignition switch to ON position.

Buckle and unbuckle left front seat belt buckle several times. Read Diagnostic Trouble Code (DTC). See
RETRIEVING DIAGNOSTIC TROUBLE CODE (DTC) under DIAGNOSTICS. If DTC 61-1 is

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

indicated, go to next step. If DTC 61-1 is not indicated, system is okay at this time. Check for intermittent
malfunction. See TROUBLESHOOTING INTERMITTENT FAILURES under DIAGNOSTICS.

2. Turn ignition switch to OFF position. Disconnect left front seat belt buckle switch 3-pin connector

located under seat. Buckle left front seat belt. Measure resistance between seat belt buckle switch
connector terminals No. 1 and 3. See Fig. 34 . Measure resistance between seat belt buckle switch
connector terminals No. 2 and 3. If resistance between terminals No. 1 and 3 is 0-1 ohm and resistance
between terminals No. 2 and 3 is more than one megohm, go to next step. If resistance between terminals
No. 1 and 3 is more than one ohm and resistance between terminals No. 2 and 3 is less than one megohm,
replace left front seat belt buckle assembly.

3. Unbuckle left front seat belt. Measure resistance between seat belt buckle switch connector terminals No.

2 and 3. Measure resistance between seat belt buckle switch connector terminals No. 1 and 3. If resistance
between terminals No. 2 and 3 is 0-1 ohm and resistance between terminals No. 1 and 3 is more than one
megohm, go to next step. If resistance between terminals No. 2 and 3 is more than one ohm and resistance
between terminals No. 1 and 3 is less than one megohm, replace left front seat belt buckle assembly.

4. Measure resistance between ground and seat wire harness connector terminal No. 3. See Fig. 34 . If

resistance is 0-1 ohm, go to next step. If resistance is more than one ohm, check open in seat wire harness,
floor harness connector or poor ground connection at G601, located at left floor pan under front seat. If
ground No. G601 is okay, replace appropriate harness.

5. Turn ignition switch to OFF position. Disable air bag system. See DISABLING SYSTEM under

DISABLING & ACTIVATING AIR BAG SYSTEM. Disconnect right and left seat belt pretensioners.
See Fig. 8 . Access and disconnect SRS unit connector "B". See SRS UNIT under REMOVAL &
INSTALLATION. Measure resistance between SRS unit connector "B", terminal No. 17 and seat wire
harness connector terminal No. 3. See Fig. 33 & Fig. 34 . If resistance is 0-1 ohm, go to next step. If
resistance is more than one ohm, open exists in seat wire harness or floor wire harness. Replace
appropriate harness.

6. Measure resistance between SRS unit connector "B", terminal No. 11 and seat wire harness connector

terminal No. 2. If resistance is 0-1 ohm, replace SRS unit. If resistance is more than one ohm, poor
connection may exist in seat wire harness, floor wire harnesses, SRS main subharness or multiplex
control unit. Replace faulty wire harness or component as necessary.

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

Fig. 34: Identifying Seat Belt Buckle Switch 3-pin Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

DTC 61-2

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Turn ignition switch to ON position.

Buckle and unbuckle left front seat belt buckle several times. Read Diagnostic Trouble Code (DTC). See
RETRIEVING DIAGNOSTIC TROUBLE CODE (DTC) under DIAGNOSTICS. If DTC 61-2 is
indicated, go to next step. If DTC 61-2 is not indicated, system is okay at this time. Check for intermittent
malfunction. See TROUBLESHOOTING INTERMITTENT FAILURES under DIAGNOSTICS.

2. Turn ignition switch to OFF position. Disconnect left front seat belt buckle switch 3-pin connector

located under seat. Check for continuity between ground and left front seat belt buckle switch 3-pin
connector terminals No. 1 and 2. See Fig. 34 . If continuity exists, replace left seat belt buckle. If
continuity does not exist, go to next step.

3. Buckle left front seat belt. Measure resistance between seat belt buckle switch connector terminals No. 1

and 3. Measure resistance between seat belt buckle switch connector terminals No. 2 and 3. If resistance
between terminals No. 1 and 3 is 0-1 ohm and resistance between terminals No. 2 and 3 is more than one
megohm, go to next step. If resistance between terminals No. 1 and 3 is more than one ohm and resistance

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

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