Honda Civic. Manual — part 40

Fig. 69: SRS - Circuit Diagram - 2-Door (08 Model) (4 Of 4)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

DTC TROUBLESHOOTING

DTC 11-1X ("X" CAN BE 0 THRU 9 OR A THRU F): OPEN IN DRIVER'S AIRBAG FIRST
INFLATOR; DTC 11-4X ("X" CAN BE 0 THRU 9 OR A THRU F): OPEN IN DRIVER'S AIRBAG

SECOND INFLATOR

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

Special Tools Required

SRS inflator simulator 07SAZ-TB4011A

SRS simulator lead J 070AZ-SNAA100

1. Clear the DTC memory (see CLEAR THE DTC MEMORY WITH THE

HDS).

2. Turn the ignition switch ON (II), and check that the SRS indicator comes on

for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 11-1x or 11-4x indicated?

YES -Go to step 3.

NO -Intermittent failure, system is OK at this time. Go to
TROUBLESHOOTING INTERMITTENT FAILURES. If another DTC is
indicated, troubleshoot the DTC.

3. Turn the ignition switch OFF. Disconnect the negative cable from the battery,

then wait for 3 minutes.

4. Disconnect the driver's airbag 4P connector (A) from the cable reel.

NOTE:

Before doing this troubleshooting procedure, review SRS
Precaution and Procedures (see PRECAUTIONS AND
PROCEDURES) and General Troubleshooting Information
(see GENERAL TROUBLESHOOTING INFORMATION).

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

Fig. 70: Identifying Driver's Airbag 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead J to

the cable reel.

6. Reconnect the negative cable to the battery.
7. Clear the DTC memory.
8. Read the DTC (see CLEAR THE DTC MEMORY WITH THE HDS).

Is DTC 11-1x or 11-4x indicated?

YES -Go to step 9.

NO -Open in the driver's airbag first or second inflator; replace the driver's
airbag (see DRIVER'S AIRBAG REPLACEMENT).

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery,

then wait for 3 minutes.

10. Disconnect the dashboard wire harness 4P connector (A) from the cable reel.

Fig. 71: Identifying Dashboard Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

11. Connect the SRS inflator simulator (2 ohms connectors) and the simulator lead

to the dashboard wire harness.

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)

12. Reconnect the negative cable to the battery.
13. Clear the DTC memory.
14. Read the DTC.

Is DTC 11-1x or 11-4x indicated?

YES -Go to step 15.

NO -Open in the cable reel; replace the cable reel (see CABLE REEL
REPLACEMENT).

15. Turn the ignition switch OFF. Disconnect the negative cable from the battery,

then wait for 3 minutes.

16. Disconnect SRS unit connector A (28P) from the SRS unit (see step 9).
17. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not

disconnect the simulator lead from the dashboard wire harness 4P connector.

18. Measure the resistance between the terminals of both SRS simulator leads.

There should be 1 ohms or less.

Fig. 72: Identifying Dashboard Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty SRS unit or poor connection at SRS unit connector A (28P) and
the SRS unit. Check the connection between the connector and the SRS unit. If

2008 Honda Civic EX

2006-08 RESTRAINTS SRS (Supplemental Restraint System) - Civic (Except Hybrid)