OBD Guide
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P3087

Supply Relay For Engine Components

P3087 is an OBD-II diagnostic trouble code meaning: Supply Relay For Engine Components. Common causes: faulty power relay, open or short circuit in the circuit. Estimated repair cost: $3–17.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$3–17 (est.)

Symptoms

  • Engine won't start
  • Interruptions in engine operation
  • Power Loss
  • Check Engine Light Is On
  • Failure of individual engine systems

Causes

  • Faulty power relay
  • Open or short circuit in the circuit
  • Damaged or oxidized contacts
  • Faulty Engine Control Module (ECM)
  • Blown fuse

How to Fix

  1. Check the condition of the power relay
  2. Inspect and check the integrity of the wiring
  3. Check relevant fuses
  4. Clean relay contacts and connectors
  5. If necessary, replace the relay

Related codes

P3088P3086P0690

FAQ

What does the P3087 code mean?

P3087 is an OBD-II diagnostic trouble code that indicates: Supply Relay For Engine Components

What causes a P3087 error code?

The most common causes of P3087 include: Faulty power relay; Open or short circuit in the circuit; Damaged or oxidized contacts; Faulty Engine Control Module (ECM).

How do I fix a P3087 diagnostic trouble code?

To fix P3087: Check the condition of the power relay. Inspect and check the integrity of the wiring. Check relevant fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3087?

Limited driving only, diagnose soon

How much does it cost to fix P3087?

The estimated repair cost for P3087 is $3–17. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat