Honda Civic. Manual — part 74

YES -Go to step 10.

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

10. Measure the resistance between the No. 1 terminal of right side impact sensor

(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. 188: Measuring Resistance Between No. 1 Terminal Of Right 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 11.

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

11. Reconnect the negative cable to the battery.
12. Turn the ignition switch ON (II).
13. Measure the voltage between the No. 1 terminal of right 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)

Fig. 189: Measuring Voltage Between No. 1 Terminal Of Right Side
Impact Sensor (Second) 2P Connector And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES -Go to step 14.

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

14. Turn the ignition switch OFF.
15. Connect the SRS inflator simulator (jumper connector) and the red lead (A) of

simulator lead L to the right side impact sensor (first) 4P connector (B).

Fig. 190: Identifying Right Side Impact Sensor (First) 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2008 Honda Civic EX

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

16. Measure the resistance between the No. 1 and No. 2 terminals of right side

impact sensor (second) 2P connector. There should be 0-1.0 ohms.

Fig. 191: Measuring Resistance Between No. 1 And No. 2 Terminals Of
Right Side Impact Sensor (Second) 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty right side impact sensor (second) or poor connection at right side
impact sensor (second) 2P connector. Check the connection; If the connection
is OK, replace the right side impact sensor (second) (see SIDE IMPACT
SENSOR (SECOND) REPLACEMENT).

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

DTC 45-2X, 45-3X, 45-BX ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE
LEFT SIDE IMPACT SENSOR (SECOND)

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.

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)

Does the SRS indicator stay on, and is DTC 45-2x, 45-3x, or 45-Bx indicated?

YES -Replace the left side impact sensor (second) (see SIDE IMPACT
SENSOR (SECOND) 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 46-2X, 46-3X, 46-BX ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE
RIGHT SIDE IMPACT SENSOR (SECOND)

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 46-2x, 46-3x, or 46-Bx indicated?

YES -Replace the right side impact sensor (second) (see SIDE IMPACT
SENSOR (SECOND) 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 51-XX, 52-XX, 53-XX, 54-XX, 55-XX ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL
FAILURE OF THE SRS UNIT

NOTE:

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

NOTE:

Before doing this troubleshooting procedure, review
SRS Precautions and Procedures (see PRECAUTIONS

2008 Honda Civic EX

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