Honda Civic. Manual — part 72

YES -Replace the right side impact sensor (first) (see SIDE IMPACT
SENSOR (FIRST) REPLACEMENT). If the DTC returns, replace the SRS
unit (see SRS UNIT REPLACEMENT).

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

DTC 45-1X ("X" CAN BE 0 THRU 9 OR A THRU F): NO SIGNAL FROM THE LEFT SIDE IMPACT
SENSOR (SECOND)

Special Tools Required

SRS inflator simulator 07SAZ-TB4011A

SRS simulator lead L 070AZ-SNAA300

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

HDS).

2. Turn the ignition switch ON (II), and wait for 10 seconds.
3. Read the DTC (see CLEAR THE DTC MEMORY WITH THE HDS).

Is DTC 45-11 indicated?

YES -Go to step 4.

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

4. Read the DTC.

Is DTC 43-11 also indicated?

NOTE:

Before doing this troubleshooting procedure, review SRS
Precautions 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)

YES -Faulty left side impact sensor (second); replace the left side impact
sensor (second) (see SIDE IMPACT SENSOR (SECOND)
REPLACEMENT).

NO -Go to step 5.

5. Read the DTC.

Is DTC B2-11 also indicated?

YES -Faulty rear safing sensor; Replace the rear safing sensor (see REAR
SAFING SENSOR REPLACEMENT).

NO -Go to step 6.

6. Turn the ignition switch OFF.
7. Disconnect the negative cable from the battery, then wait for 3 minutes.
8. Disconnect floor wire harness 2P connector (A) from the left side impact

sensor (second).

Fig. 178: Identifying Floor Wire Harness 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

9. Disconnect the floor wire harness 4P connector (A) from the rear safing sensor.

2008 Honda Civic EX

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

Fig. 179: Identifying Floor Wire Harness 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

10. Measure the resistance between the No. 1 and No. 2 terminals of left side

impact sensor (second) 2P connector. There should be an open circuit or at
least 1 M ohms.

Fig. 180: Measuring Resistance Between No. 1 And No. 2 Terminals Of
Left Side Impact Sensor (Second) 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 11.

NO -Short in the floor wire harness; replace the floor wire harness.

11. Measure the resistance between the No. 1 terminal of left side impact sensor

2008 Honda Civic EX

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

(second) 2P connector and body ground, and between the No. 2 terminal and
body ground. There should be an open circuit or at least 1 M ohms.

Fig. 181: Measuring Resistance Between No. 1 Terminal Of Left Side
Impact Sensor (Second) 2P Connector And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 12.

NO -Short to ground in the floor wire harness; replace the floor wire harness.

12. Reconnect the negative cable to the battery.
13. Turn the ignition switch ON (II).
14. Measure the voltage between the No. 1 terminal of left side impact sensor

(second) 2P connector and body ground, and between the No. 2 terminal and
body ground. There should be 1 V or less.

2008 Honda Civic EX

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