Acura TSX / Honda Accord CL. Manual - part 706

between terminals No. 2 and 3 is less than one megohm, replace left front seat belt buckle assembly.

4. 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.

5. 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 not 0-1 ohm, open in left seat wire harness or floor
wire harness, or poor ground connection at G601, located at left floor pan under front seat. If G601 is
okay, replace appropriate wire harness. See WIRING DIAGRAMS .

6. Measure resistance between ground and seat wire harness connector terminal No. 2. If resistance is more

than one megohm, go to next step. If resistance is less than one megohm, short to ground in left seat wire
harness, floor wire harness or multiplex control unit. Replace faulty component or wire harness as
necessary.

7. Measure resistance between ground and seat wire harness connector terminal No. 1. If resistance is more

than one megohm, Replace SRS unit. See SRS UNIT under REMOVAL & INSTALLATION. If
resistance is less than one megohm, short to ground in left seat wire harness or floor wire harness.
Replace appropriate wire harness.

DTC 62-1

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

Buckle and unbuckle right front seat belt buckle several times. Read Diagnostic Trouble Code (DTC).
See RETRIEVING DIAGNOSTIC TROUBLE CODE (DTC) under DIAGNOSTICS. If DTC 62-1 is
indicated, go to next step. If DTC 62-1 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 right front seat belt buckle switch 3-pin connector

located under seat. Buckle right 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. 1 and 2. If resistance between terminals No. 1 and 3 is 0-1 ohm and resistance
between terminals No. 1 and 2 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. 1 and 2 is less than one megohm,
replace right front seat belt buckle assembly.

3. Unbuckle right front seat belt. Measure resistance between seat belt buckle switch connector terminals

No. 1 and 2. Measure resistance between seat belt buckle switch connector terminals No. 1 and 3. If
resistance between terminals No. 1 and 2 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. 1 and 2 is more than one
ohm and resistance between terminals No. 1 and 3 is less than one megohm, replace right front seat belt
buckle assembly.

4. Measure resistance between ground and seat wire harness connector terminal No. 1. 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 G602, located at right floor pan under front seat. If
ground No. G602 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 right seat belt pretensioners.
See Fig. 8 . Access and disconnect SRS unit connector "B". See SRS UNIT under REMOVAL &

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

INSTALLATION. Measure resistance between SRS unit connector "B", terminal No. 18 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. 12 and seat wire harness connector

terminal No. 2. If resistance is 0-1 ohm, replace SRS unit. If resistance is more than one ohm, floor wire
harness.

DTC 62-2

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

Buckle and unbuckle right front seat belt buckle several times. Read Diagnostic Trouble Code (DTC).
See RETRIEVING DIAGNOSTIC TROUBLE CODE (DTC) under DIAGNOSTICS. If DTC 62-2 is
indicated, go to next step. If DTC 62-2 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 right front seat belt buckle switch 3-pin connector

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

3. Buckle right 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. 1 and 2. If resistance
between terminals No. 1 and 3 is 0-1 ohm and resistance between terminals No. 1 and 2 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. 1 and 2 is less than one megohm, replace right front seat belt buckle assembly.

4. Unbuckle right front seat belt. Measure resistance between seat belt buckle switch connector terminals

5. Measure resistance between ground and seat wire harness connector terminal No. 1. See Fig. 34 . If

resistance is 0-1 ohm, go to next step. If resistance is not 0-1 ohm, open in right seat wire harness or floor
wire harness, or poor ground connection at G602, located at right floor pan under front seat. If G602 is
okay, replace appropriate wire harness. See WIRING DIAGRAMS .

6. Measure resistance between ground and seat wire harness connector terminal No. 2. If resistance is more

than one megohm, go to next step. If resistance is less than one megohm, short to ground in right seat
wire harness, floor wire harness or multiplex control unit. Replace faulty component or wire harness as
necessary.

7. Measure resistance between ground and seat wire harness connector terminal No. 3. If resistance is more

than one megohm, replace SRS unit. See SRS UNIT under REMOVAL & INSTALLATION. If
resistance is less than one megohm, short to ground in right seat wire harness or floor wire harness.
Replace appropriate wire harness.

DTC 85-61, 85-62

1. Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Ensure nothing is on right front seat.

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

Erase Diagnostic Trouble Code (DTC) memory. See ERASING DIAGNOSTIC TROUBLE CODE
MEMORY under DIAGNOSTICS. Retrieve DTC. See RETRIEVING DIAGNOSTIC TROUBLE
CODE (DTC) under DIAGNOSTICS. If DTC 85-61 or 85-62 is indicated, go to next step. If DTC 85-61
or 85-62 is not indicated, system is okay at this time. Check for intermittent malfunction. See
TROUBLESHOOTING INTERMITTENT FAILURES under DIAGNOSTICS.

2. Visually inspect connection between OPDS unit and harness connector. See OCCUPANT POSITION

DETECTION SYSTEM (OPDS) UNIT under REMOVAL & INSTALLATION. See Fig. 35 . If OPDS
unit and connectors are okay, go to next step. If OPDS and connectors are not okay, repair poor
connection as necessary and retest. If DTC 85-61 or 85-62 is indicated, go to next step

3. Turn ignition switch to OFF position. Check fuse No. 10 (7.5-amp), located in instrument panel fuse/relay

box. If fuse is okay, go to next step. If fuse is blown, replace fuse. Turn ignition switch to ON position. If
fuse blows again, check for short to ground in fuse No. 10 circuit, dashboard wire harness, floor wire
harness or OPDS unit harness. Repair as necessary.

4. Disconnect OPDS unit 8-pin harness connector. See Fig. 35 . Turn ignition switch to ON position.

Measure voltage between ground and OPDS unit harness 8-pin connector terminal No. 4. If battery
voltage is present, go to step 6 . If battery voltage is not present, go to next step.

5. Turn ignition switch to OFF position. Disconnect dashboard wire harness 24-pin connector from floor

harness. See Fig. 36 . Turn ignition switch to ON position. Measure voltage between ground and
dashboard wire harness 24-pin connector, terminal No. 19. If battery voltage is present, open exists in
White wire in floor wire harness or OPDS unit harness. Replace appropriate wire harness. See WIRING
DIAGRAMS . If battery voltage is not present, replace dashboard wire harness.

6. Turn ignition switch to OFF position. Measure resistance between ground and OPDS 8-pin connector

terminal No. 8. See Fig. 35 . If resistance is 0-1 ohm, go to next step. If resistance is not 0-1 ohm, check
for open in Black wire of floor wire harness or OPDS unit harness. Replace appropriate harness.

7. 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 SEAT BELT PRETENSIONERS under REMOVAL & INSTALLATION. See Fig. 8 . Access and
disconnect SRS unit connector "B". See SRS UNIT under REMOVAL & INSTALLATION. See Fig.
33 . Measure resistance between ground and SRS unit connector "B", terminal No. 27. If resistance is
more than one megohm, go to next step. If resistance less than one megohm, go to step 10 .

8. Measure resistance between SRS unit connector "B", terminal No. 27 and OPDS unit harness 8-pin

connector terminal No. 7. If resistance is 0-1 ohm, faulty OPDS unit or SRS unit exists. Replace OPDS
unit. If problem still exists, replace SRS unit. If resistance more than one ohm, go to next step.

9. Disconnect floor wire harness from OPDS harness. See Fig. 35 . Measure resistance between SRS unit

connector "B", terminal No. 27 and floor harness 4-pin connector terminal No. 4. If resistance is 0-1 ohm,
replace OPDS unit harness. If resistance is more than one ohm, replace floor wire harness.

10. Disconnect floor wire harness from OPDS harness. See Fig. 35 . Measure resistance between ground and

SRS unit connector "B", terminal No. 27. If resistance is more than one megohm, replace OPDS wire
harness. If resistance is less than one megohm, replace floor wire harness. See WIRING DIAGRAMS .

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

Fig. 35: Identifying OPDS Unit Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2004 Acura TSX

2004 ACCESSORIES/SAFETY EQUIPMENT Acura - Air Bag Restraint Systems

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