Honda Civic. Manual — part 45

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 12-8x or 12-Ax 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 front passenger's airbag 4P connector (A) from dashboard wire

harness.

Fig. 86: Identifying Front Passenger'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 dashboard wire harness.

6. Reconnect the negative cable to the battery.
7. Clear the DTC memory.

(see GENERAL TROUBLESHOOTING INFORMATION).

2008 Honda Civic EX

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

8. Read the DTC (see CLEAR THE DTC MEMORY WITH THE HDS).

Is DTC 12-8x or 12-Ax indicated?

YES -Go to step 9.

NO -Short to power in the front passenger's airbag first or second inflator;
replace the front passenger's airbag (see FRONT PASSENGER'S AIRBAG
REPLACEMENT).

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

then wait for 3 minutes.

10. Disconnect SRS unit connector A (28P) from the SRS unit (see step 9

DISCONNECTING SYSTEM CONNECTORS).

11. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not

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

12. Reconnect the negative cable to the battery.
13. Turn the ignition switch ON (II).
14. Measure the voltage between each terminal of the SRS simulator lead and body

ground. There should be 0.5 V or less.

Fig. 87: Identifying Dashboard Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

2008 Honda Civic EX

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

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
the connection is OK, replace the SRS unit (see SRS UNIT
REPLACEMENT).

NO -Short to power in the dashboard wire harness; replace the dashboard wire
harness.

DTC 12-9X ("X" CAN BE 0 THRU 9 OR A THRU F): SHORT TO GROUND IN FRONT
PASSENGER'S AIRBAG FIRST INFLATOR; DTC 12-BX ("X" CAN BE 0 THRU 9 OR A THRU F):
SHORT TO GROUND IN FRONT PASSENGER'S AIRBAG SECOND INFLATOR

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 12-9x or 12-Bx 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.

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)

4. Disconnect the front passenger's airbag 4P connector (A) from the dashboard

wire harness.

Fig. 88: Identifying Front Passenger'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 dashboard wire harness.

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 12-9x or 12-Bx indicated?

YES -Go to step 9.

NO -Short to ground in the front passenger's airbag first or second inflator;
replace the front passenger's airbag (see FRONT PASSENGER'S AIRBAG
REPLACEMENT).

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

then wait for 3 minutes.

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

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

12. Measure the resistance between each terminal of the SRS simulator lead and

2008 Honda Civic EX

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