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.
Glass Antenna Circuit Inspection
- Remove the right side rear quarter trim.
Then disconnect the antenna feeder cable from the glass antenna amp.
- Turn the radio ON.
Measure the voltage between the harness side (A) and body ground (B).
OK: approximately 12V (ACC+)
- Check for FM wire resistance between terminals of No. 1 and 3
- FM antenna grid terminal
- AM antenna grid terminal
- Body ground.
Standard value: 80~120KΩ
Short: Approx. 0Ω
Open: ∞ Ω
- Check for AM wire resistance between terminals of No. 2 and 3.
Standard value: 120~170KΩ
Short: Approx. 0Ω
Open: ∞ Ω
- Check the grid lines for continuity.
- When a poor radio reception is not repaired through the above inspection methods, replace the amp.
If the radio reception is still poor, check the radio cable for short and radio head unit for failure.
NO RELATED
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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.