OBD Guide
ENFRDEESPT

C1140

ABS Actuator Relay

C1140 is an OBD-II diagnostic trouble code meaning: ABS Actuator Relay. Common causes: faulty abs relay, corrosion of relay contacts. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • The ABS indicator on the dashboard is on
  • ABS system does not work
  • Loss of braking efficiency on slippery surfaces

Causes

  • Faulty ABS relay
  • Corrosion of relay contacts
  • Damage to ABS wiring harness
  • ABS relay fuse problems

How to Fix

  1. Check ABS relay fuse
  2. Inspect relay contacts for corrosion
  3. Replace faulty ABS relay
  4. Check the integrity of the ABS wiring harness

Related codes

C1141C1142C1143

FAQ

What does the C1140 code mean?

C1140 is an OBD-II diagnostic trouble code that indicates: ABS Actuator Relay

What causes a C1140 error code?

The most common causes of C1140 include: Faulty ABS relay; Corrosion of relay contacts; Damage to ABS wiring harness; ABS relay fuse problems.

How do I fix a C1140 diagnostic trouble code?

To fix C1140: Check ABS relay fuse. Inspect relay contacts for corrosion. Replace faulty ABS relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1140?

Limited driving only, diagnose soon

How much does it cost to fix C1140?

The estimated repair cost for C1140 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat