OBD Guide
ENFRDEESPT

B11E8

ABS Power Supply Circuit Voltage Below Threshold

B11E8 is an OBD-II diagnostic trouble code meaning: ABS Power Supply Circuit Voltage Below Threshold. Common causes: low battery, generator malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • ABS light is on
  • Disabling the ABS system
  • Unstable operation of the brake system

Causes

  • Low battery
  • Generator malfunction
  • Broken or damaged wiring harness
  • ABS control unit malfunction
  • Problems with ABS fuses or relays

How to Fix

  1. Check battery charge
  2. Check generator operation
  3. Inspect the wiring harness and contacts for damage
  4. Check ABS fuses and relays
  5. Measure the voltage at the terminals of the ABS control unit
  6. If necessary, replace faulty components

Related codes

B11E7B11E9C0040

FAQ

What does the B11E8 code mean?

B11E8 is an OBD-II diagnostic trouble code that indicates: ABS Power Supply Circuit Voltage Below Threshold

What causes a B11E8 error code?

The most common causes of B11E8 include: Low battery; Generator malfunction; Broken or damaged wiring harness; ABS control unit malfunction.

How do I fix a B11E8 diagnostic trouble code?

To fix B11E8: Check battery charge. Check generator operation. Inspect the wiring harness and contacts for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B11E8?

Limited driving only, diagnose soon

How much does it cost to fix B11E8?

The estimated repair cost for B11E8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat