OBD Guide

B10CB

Right Rear Door Handle Antenna Circuit Intermittent

B10CB is an OBD-II diagnostic trouble code meaning: Right Rear Door Handle Antenna Circuit Intermittent. Common causes: broken or damaged wires in the harness, oxidation of antenna contacts. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Periodic failure of the keyless entry system
  • Lock activation delay when touching the handle
  • Unstable operation of the door open button

Causes

  • Broken or damaged wires in the harness
  • Oxidation of antenna contacts
  • Mechanical damage to the antenna
  • Moisture getting into the antenna area
  • Door control unit malfunction

How to Fix

  1. Check the integrity of the wiring harness from the antenna to the control unit
  2. Inspect the antenna contacts for oxidation
  3. Clean or replace contacts if necessary
  4. Test antenna impedance (must meet specification)
  5. Replace the antenna if a malfunction is detected
  6. Update the control unit firmware (if necessary)

Related codes

FAQ

What does the B10CB code mean?

B10CB is an OBD-II diagnostic trouble code that indicates: Right Rear Door Handle Antenna Circuit Intermittent

What causes a B10CB error code?

The most common causes of B10CB include: Broken or damaged wires in the harness; Oxidation of antenna contacts; Mechanical damage to the antenna; Moisture getting into the antenna area.

How do I fix a B10CB diagnostic trouble code?

To fix B10CB: Check the integrity of the wiring harness from the antenna to the control unit. Inspect the antenna contacts for oxidation. Clean or replace contacts if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B10CB?

Yes, but get it checked soon

How much does it cost to fix B10CB?

The estimated repair cost for B10CB is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat