OBD Guide
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B1252

USB Port Circuit Short to Ground

B1252 is an OBD-II diagnostic trouble code meaning: USB Port Circuit Short to Ground. Common causes: damage to the wires in the usb port circuit, short circuit in wiring harness. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • USB port doesn't work
  • Error on the multimedia system display
  • Problems with charging devices via USB

Causes

  • Damage to the wires in the USB port circuit
  • Short circuit in wiring harness
  • Malfunction of the USB port itself
  • Connection problems or contact corrosion

How to Fix

  1. Check the integrity of the wires in the USB port circuit
  2. Inspect the USB port for damage
  3. Check connections and contacts for corrosion
  4. Replace the USB port if necessary
  5. Check wiring harness for short circuit

FAQ

What does the B1252 code mean?

B1252 is an OBD-II diagnostic trouble code that indicates: USB Port Circuit Short to Ground

What causes a B1252 error code?

The most common causes of B1252 include: Damage to the wires in the USB port circuit; Short circuit in wiring harness; Malfunction of the USB port itself; Connection problems or contact corrosion.

How do I fix a B1252 diagnostic trouble code?

To fix B1252: Check the integrity of the wires in the USB port circuit. Inspect the USB port for damage. Check connections and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1252?

Yes, but get it checked soon

How much does it cost to fix B1252?

The estimated repair cost for B1252 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat