Honda Civic. Manual — part 82

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

then wait for 3 minutes.

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

DISCONNECTING SYSTEM CONNECTORS).

14. Measure the resistance between the No. 14 terminal of SRS unit connector A

(28P) and body ground. There should be an open circuit or at least 1 M ohms.

Fig. 222: Measuring Resistance Between No. 14 Terminal Of SRS Unit
Connector A (28P) And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 15.

NO -Short to ground in the dashboard wire harness, front passenger's seat wire
harness (with seat heater) or floor wire harness; replace the faulty harness.

15. Measure the resistance between the No. 14 terminal of SRS unit connector A

(28P) and the No. 7 terminal of the ODS unit harness 18P connector. There
should be 0-1.0 ohms.

2008 Honda Civic EX

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

Fig. 223: Measuring Resistance Between No. 14 Terminal Of SRS Unit
And No. 7 Terminal Of ODS Unit Harness 18P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty ODS unit or SRS unit; replace the ODS unit (see ODS UNIT
REPLACEMENT). If the problem is still present, replace the SRS unit (see
SRS UNIT REPLACEMENT).

NO -Open in the dashboard wire harness, floor wire harness, or front
passenger's seat wire harness (with seat heater); replace the faulty harness.

DTC 81-71, 81-78: ODS UNIT DOES NOT CALIBRATE

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 81-71 or 81-78 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 -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. Calibrate the ODS unit (see ODS UNIT CALIBRATION).
4. 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 go off?

YES -The system is OK.

NO -Go to step 5.

5. Replace the ODS unit (see ODS UNIT REPLACEMENT).
6. 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 go off?

YES -The system is OK.

NO -Replace the SRS unit (see SRS UNIT REPLACEMENT).

DTC 85-71, 85-78: ODS UNIT NOT INITIALIZED

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 85-71 or 85-78 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. Initialize the ODS unit (see ODS UNIT INITIALIZATION).
4. 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 go off?

YES -The system is OK.

NO -Go to step 5.

5. Replace the ODS unit (see ODS UNIT REPLACEMENT).
6. 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 go off?

YES -The system is OK.

NO -Replace the SRS unit (see SRS UNIT REPLACEMENT).

DTC 81-4X, 81-5X, 81-63, 81-64, 85-4X, 85-5X, 85-63, 85-64 ("X" CAN BE 0 THRU 9 OR A THRU F):
INTERNAL FAILURE OF THE ODS UNIT

NOTE:

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

An incorrect ODS unit can cause DTC 85-63.

2008 Honda Civic EX

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