OBD Guide

P0E76

Coolant Bypass Valve A Control Circuit Low

P0E76 is an OBD-II diagnostic trouble code meaning: Coolant Bypass Valve A Control Circuit Low. Common causes: coolant bypass valve malfunction, open or short circuit in control circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Engine overheating
  • The engine takes a long time to warm up
  • Unstable engine operation
  • Check Engine Light Is On
  • Reduced cooling system efficiency

Causes

  • Coolant bypass valve malfunction
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • ECU malfunction
  • Contact corrosion

How to Fix

  1. Check valve control circuit integrity
  2. Check valve resistance
  3. Inspect connectors and contacts for corrosion
  4. Check voltage at valve connector
  5. Replace the coolant bypass valve if necessary.

Related codes

Error P0E76 by Vehicle Brand

FAQ

What does the P0E76 code mean?

P0E76 is an OBD-II diagnostic trouble code that indicates: Coolant Bypass Valve A Control Circuit Low

What causes a P0E76 error code?

The most common causes of P0E76 include: Coolant bypass valve malfunction; Open or short circuit in control circuit; Poor contact in connectors; ECU malfunction.

How do I fix a P0E76 diagnostic trouble code?

To fix P0E76: Check valve control circuit integrity. Check valve resistance. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0E76?

Limited driving only, diagnose soon

How much does it cost to fix P0E76?

The estimated repair cost for P0E76 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat