Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Test Tone Mode
The Test Tone ode is available to check for proper speaker function. Once Test Tone mode has been selected, a tone alternating between 100 Hz and 3 kHz will automatically begin to sound. Refer to On Board Diagnostic Mode procedure prior to referencing this information.
To use the Test Tone Mode:
- U1C
- The display will show 1 indicating the left front speaker is selected.
- Use the SEEK rocker button to move between speakers; 2 indicates right front; 3 indicates left rear, and 4 indicates right rear.
- Press RCL button to return to OBD menu.
- UP0 and UB2
- The radio will start alternating tones on the left front.
- Use the TUNE rocker button to move between speakers.
- Press AM/FM to return to OBD menu.
If no test tone is heard audibly, increase the volume using the VOL knob. If any of the test tones are not heard from one or more speakers, refer to Speakers Inoperative - One or More
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.