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.
Circuit Inspection
2021 Kia Forte EXSECTION Circuit Inspection
| Inspection Condition | (+) Probe | (-) Probe | Specification | ||
|---|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | ||
|
AUX & USB jack harness connector | 4 (VCC) | Chassis ground | - | Approx. 5V |
|
AUX & USB jack harness connector | 1 (ground) | Chassis ground | - | Approx. below 1Ω |
| AUX & USB jack harness connector | 1 (ground) | A/V & Navigation head unit harness connector | 1 (ground) | Approx. below 1Ω | |
| AUX & USB jack harness connector | 2 (D+) | A/V & Navigation head unit harness connector | 2 (D+) | Approx. below 1Ω | |
| AUX & USB jack harness connector | 3 (D-) | A/V & Navigation head unit harness connector | 3 (D-) | Approx. below 1Ω | |
| AUX & USB jack harness connector | 4 (VCC) | A/V & Navigation head unit harness connector | 4 (VCC) | Approx. below 1Ω | |
Good
- Carefully re-do this troubleshooting guide steps.
- If no problems were found with the circuits or connectors, replace the A/V & Navigation head unit and go to "VERIFICATION OF REPAIR " procedure.
No Good
- Carefully re-do this troubleshooting guide steps.
- If no problems were found with the circuits or connectors, replace the AUX & USB jack and go to "VERIFICATION OF REPAIR " procedure.
RENDER: 1.0x
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.