Sound signals (Honda Civic 5)

Checking the switch (with SRS)

1. Disconnect the negative battery cable, then disconnect the positive cable and wait at least three minutes.

2. Disconnect the driver's airbag connector (and the passenger).

3. Remove the lower instrument panel cover.

4. Disconnect the auxiliary coil wiring connector from the main wiring.



5. Check the conductivity between contacts No.2 of the auxiliary wiring of the coil and the housing with the horn button pressed.

• If there is continuity, the horn switch is OK.
• If there is no conductivity, proceed to step 6.

6. Remove the driver airbag assembly, then disconnect the horn connector from the steering wheel.



7. Check the conductivity between contact No.2 of the auxiliary wiring connector of the coil and the positive contacts of the horn.

• If there is no continuity, replace the cable reel.
• If continuity is present, repair or replace the horn switch.

8. If all tests are positive, install the driver airbag assembly and connect the auxiliary coil wiring connector,

9. Connect the driver's airbag connector (and the front passenger seat) and install the access panel on the steering wheel,

10. Connect the positive battery cable, then the negative.

11. After installing the airbag unit, make sure the system is working properly:

• Turn the ignition switch ON(II), the SRS indicator lamp on the instrument panel should come on for about 6 seconds and then go out.
• Make sure both horn buttons work.

Checking the switch (without SRS)

1. Remove the steering wheel, then turn it over.

2. Check the conductivity between the hub core and the contact ring according to the table.

• If there is continuity, check the combination switch.

Checking the sound signal

1. Remove the front bumper.

2. Disconnect the contact from the horn.

3. Remove the sound signal.

4. Check the buzzer by connecting battery power to one terminal and grounding the other. The buzzer should sound.