OBD Guide
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B10CA

Left Rear Door Handle Antenna Circuit Intermittent

B10CA is an OBD-II diagnostic trouble code meaning: Left Rear Door Handle Antenna Circuit Intermittent. Common causes: wiring harness damage, poor contact in connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Periodic failure of keyless entry
  • Problems with central locking
  • Unstable operation of comfort access

Causes

  • Wiring harness damage
  • Poor contact in connectors
  • Antenna malfunction
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Inspect connectors for oxidation or damage
  3. Check antenna resistance
  4. Replace the antenna if necessary

Related codes

B10CBB10CCB10CD

FAQ

What does the B10CA code mean?

B10CA is an OBD-II diagnostic trouble code that indicates: Left Rear Door Handle Antenna Circuit Intermittent

What causes a B10CA error code?

The most common causes of B10CA include: Wiring harness damage; Poor contact in connectors; Antenna malfunction; Short circuit in the circuit.

How do I fix a B10CA diagnostic trouble code?

To fix B10CA: Check the integrity of the wiring harness. Inspect connectors for oxidation or damage. Check antenna resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B10CA?

Limited driving only, diagnose soon

How much does it cost to fix B10CA?

The estimated repair cost for B10CA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat