OBD Guide

P01E7

Engine Coolant Temperature Sensor 3 Circuit Intermittent/Erratic

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Unstable temperature readings on the dashboard
  • Engine overheating
  • Increased fuel consumption
  • Unstable engine idling

Causes

  • Damage to the sensor wiring harness
  • Poor contact in the sensor connector
  • Malfunction of coolant temperature sensor No. 3
  • Problems with the ECU

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Clean the contacts in the sensor connector
  3. Replace coolant temperature sensor No. 3 if necessary
  4. Check the operation of the computer

Related codes

Error P01E7 by Vehicle Brand