OBD Guide

B118C

BSM Indicator Light Left Circuit Malfunction

B118C is an OBD-II diagnostic trouble code meaning: BSM Indicator Light Left Circuit Malfunction. Common causes: open or short circuit in wiring harness, left bsm indicator malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • BSM indicator does not work
  • Left BSM indicator flashes for no reason
  • BSM system disabled

Causes

  • Open or short circuit in wiring harness
  • Left BSM indicator malfunction
  • Problems with the BSM module
  • Poor contact in connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the operation of the left BSM indicator
  3. Check contacts in connectors
  4. Carry out diagnostics of the BSM module

Related codes

FAQ

What does the B118C code mean?

B118C is an OBD-II diagnostic trouble code that indicates: BSM Indicator Light Left Circuit Malfunction

What causes a B118C error code?

The most common causes of B118C include: Open or short circuit in wiring harness; Left BSM indicator malfunction; Problems with the BSM module; Poor contact in connectors.

How do I fix a B118C diagnostic trouble code?

To fix B118C: Check wiring harness for damage. Check the operation of the left BSM indicator. Check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B118C?

Limited driving only, diagnose soon

How much does it cost to fix B118C?

The estimated repair cost for B118C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat