OBD Guide

P01EE

Engine Coolant Heater B Control Circuit High

P01EE is an OBD-II diagnostic trouble code meaning: Engine Coolant Heater B Control Circuit High. Common causes: broken or damaged wiring harness, coolant heater malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Extended engine warm-up time
  • Unstable engine operation at idle
  • Increased fuel consumption in the cold season

Causes

  • Broken or damaged wiring harness
  • Coolant heater malfunction
  • Oxidation of contacts in connectors
  • Faulty relay or fuse
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the wiring harness and connectors for damage
  2. Check the resistance of the coolant heater
  3. Check the functionality of the relays and fuses
  4. Scan the ECU for additional errors
  5. If necessary, replace the heater or damaged circuit elements

Related codes

Error P01EE by Vehicle Brand

FAQ

What does the P01EE code mean?

P01EE is an OBD-II diagnostic trouble code that indicates: Engine Coolant Heater B Control Circuit High

What causes a P01EE error code?

The most common causes of P01EE include: Broken or damaged wiring harness; Coolant heater malfunction; Oxidation of contacts in connectors; Faulty relay or fuse.

How do I fix a P01EE diagnostic trouble code?

To fix P01EE: Check the condition of the wiring harness and connectors for damage. Check the resistance of the coolant heater. Check the functionality of the relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P01EE?

Limited driving only, diagnose soon

How much does it cost to fix P01EE?

The estimated repair cost for P01EE is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat