Switch Test
- Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
- Disconnect the battery negative cable, then disconnect the positive cable, and wait at least three minutes.
- Disconnect the driver's airbag connector (see DRIVER'S AIRBAG ASSEMBLY
).
- Remove the driver's dashboard lower cover (see DASHBOARD COMPONENT REMOVAL/INSTALLATION
).
- Disconnect the cable reel sub-harness 3P connector from the main wire harness.
- Check for continuity between the No. 2 terminal of the cable reel sub-harness and body ground with the horn switch pressed.
- If there is continuity, the horn switch is OK.
- If there is no continuity, go to step 6.
- Remove the driver's airbag assembly {see DRIVER'S AIRBAG ASSEMBLY
), then disconnect the horn connector from the steering wheel.
- Check for continuity between the No. 2 terminal of the cable reel sub-harness 3P connector and horn positive terminal.
- If there is no continuity, replace the cable reel (see CABLE REEL
).
- If there is continuity, repair or replace the horn switch.
- If all tests prove OK, reinstall the driver's airbag assembly (see DRIVER'S AIRBAG ASSEMBLY
), and reconnect the cable reel sub-harness connector.
- Reconnect the driver's airbag connector, and reinstall the access panel on the steering wheel.
- Reconnect the battery positive cable, then the negative terminal.
- After installing the airbag assembly, confirm proper system operation:
- Turn the ignition switch ON (II); the SRS indicator light should come on for about six seconds and then go off.
- Make sure both horn buttons work.
- Enter the anti-theft code for the radio, then enter the customer's radio station presets.