Honda Civic. Manual — part 78

Fig. 203: Identifying Front Passenger's Seat Belt Buckle Switch 3P
Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

8. Buckle the front passenger's seat belt. Check resistance between the No. 1 and

No. 3 terminals of the front passenger's seat belt buckle switch 3P connector.
There should be 0-1 ohms.

Fig. 204: Checking Resistance Between No. 1 And No. 3 Terminals Of
Front Passenger's Seat Belt Buckle Switch 3P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistances specified?

YES -Go to step 9.

NO -Replace the front passenger's seat belt buckle assembly (see FRONT
SEAT BELT BUCKLE ), then clear the DTC.

9. Disconnect the negative cable from the battery, then wait for 3 minutes.

10. Disconnect both seat belt tensioner connectors (see step 7 DISCONNECTING

2008 Honda Civic EX

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

SYSTEM CONNECTORS) and both seat belt buckle tensioner connectors
(see step 8 DISCONNECTING SYSTEM CONNECTORS).

11. Disconnect SRS unit connector B (28P) from the SRS unit (see step9

DISCONNECTING SYSTEM CONNECTORS).

12. Measure the resistance between the No. 16 terminal of SRS unit connector B

(28P) and the No. 1 terminal of the passenger's seat wire harness 3P connector.
There should be 0-1 ohms.

Fig. 205: Measuring Resistance Between No. 16 Terminal Of SRS Unit
And No. 1 Terminal Of Passenger's Seat Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty SRS unit or poor connection at SRS unit connector B (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 -Open in the floor wire harness; replace the floor wire harness.

13. Turn the ignition switch OFF.
14. Disconnect the floor wire harness 3P connector from the front passenger's seat

belt buckle switch 3P connector (A).

2008 Honda Civic EX

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

Fig. 206: Identifying Front Passenger's Seat Belt Buckle Switch 3P
Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

15. Unbuckle the front passenger's seat belt.
16. Measure the resistance between the No. 1 and No. 2 terminals of the front

passenger's seat belt buckle switch 3P connector. There should be 0-1 ohms.

Fig. 207: Measuring Resistance Between No. 1 And No. 2 Terminals Of
Front Passenger's Seat Belt Buckle Switch 3P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 17.

NO -Replace the front passenger's seat belt buckle assembly (see FRONT
SEAT BELT BUCKLE ), then clear the DTC.

17. Disconnect the negative cable from the battery, then wait for 3 minutes,

2008 Honda Civic EX

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

18. Disconnect both seat belt tensioner 4P connectors (see step 7

DISCONNECTING SYSTEM CONNECTORS) and both seat belt buckle
tensioner 4P connectors (see step 8 DISCONNECTING SYSTEM
CONNECTORS).

19. Disconnect SRS unit connector B (28P) from the SRS unit (see step 9

DISCONNECTING SYSTEM CONNECTORS).

20. Measure the resistance between the No. 15 terminal of SRS unit connector B

(28P) and the No. 2 terminal of the floor wire harness 3P connector. There
should be 0-1 ohms.

Fig. 208: Measuring Resistance Between No. 15 Terminal Of SRS Unit
And No. 2 Terminal Of Floor Wire Harness 3P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty SRS unit or poor connection at SRS unit connector B (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 -Open in the floor wire harness; replace the floor wire harness.

21. Turn the ignition switch OFF.
22. Disconnect the floor wire harness 3P connector from the front passenger's seat

belt buckle switch 3P connector (A).

2008 Honda Civic EX

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