Honda Civic. Manual — part 71

Fig. 173: Measuring Resistance Between No. 27 And No. 28 Terminals Of
SRS Unit Connector B (28P)
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. 27 terminal of SRS unit connector B

(28P) and body ground, and between the No. 28 terminal and body ground.
There should be an open circuit or at least 1 M ohms.

Fig. 174: Measuring Resistance Between No. 27 Terminal Of SRS Unit
Connector B (28P) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 12.

2008 Honda Civic EX

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

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. 27 terminal of SRS unit connector B

(28P) and body ground, and between the No. 28 terminal and body ground.
There should be 1 V or less.

Fig. 175: Measuring Voltage Between No. 27 Terminal Of SRS Unit
Connector B (28P) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES -Go to step 15.

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

15. Turn the ignition switch OFF.
16. Connect the SRS inflator simulator (jumper connector) and the black lead (A)

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

2008 Honda Civic EX

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

Fig. 176: Identifying Right Side Impact Sensor 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

17. Measure the resistance between the No. 27 and No. 28 terminals of SRS unit

connector B (28P). There should be 0-1.0 ohms.

Fig. 177: Measuring Resistance Between No. 27 And No. 28 Terminals Of
SRS Unit Connector B (28P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty right side impact sensor (first) or SRS unit; replace the right side
impact sensor (first) (see SIDE IMPACT SENSOR (FIRST)
REPLACEMENT). If the problem is still present, replace the SRS unit (see
SRS UNIT REPLACEMENT).

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

2008 Honda Civic EX

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

DTC 43-2X, 43-3X, 43-BX ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE

LEFT SIDE IMPACT SENSOR (FIRST)

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 43-2x, 43-3x, or 43-Bx indicated?

YES -Replace the left 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 44-2X, 44-3X, 44-BX ("X" CAN BE 0 THRU 9 OR A THRU F): INTERNAL FAILURE OF THE
RIGHT SIDE IMPACT SENSOR (FIRST)

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 44-2x, 44-3x, or 44-Bx indicated?

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 AND
PROCEDURES) and General Troubleshooting Information
(see GENERAL TROUBLESHOOTING INFORMATION).

2008 Honda Civic EX

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