OBD Guide
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C1186

ABS Power Relay Output Open Circuit

C1186 is an OBD-II diagnostic trouble code meaning: ABS Power Relay Output Open Circuit. Common causes: broken wires in the abs harness, faulty abs relay. Estimated repair cost: $56–167.

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

Symptoms

  • ABS light is on
  • Disabling the ABS system
  • Anti-lock braking system does not work when braking

Causes

  • Broken wires in the ABS harness
  • Faulty ABS relay
  • Bad contacts in connectors
  • Contact corrosion
  • Wiring damage

How to Fix

  1. Check the integrity of the ABS wiring harness
  2. Check the ABS relay for serviceability
  3. Clean connector contacts
  4. Replace damaged wires
  5. Replace ABS relay if necessary

Related codes

C1185C1187C1190

FAQ

What does the C1186 code mean?

C1186 is an OBD-II diagnostic trouble code that indicates: ABS Power Relay Output Open Circuit

What causes a C1186 error code?

The most common causes of C1186 include: Broken wires in the ABS harness; Faulty ABS relay; Bad contacts in connectors; Contact corrosion.

How do I fix a C1186 diagnostic trouble code?

To fix C1186: Check the integrity of the ABS wiring harness. Check the ABS relay for serviceability. Clean connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1186?

Limited driving only, diagnose soon

How much does it cost to fix C1186?

The estimated repair cost for C1186 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat