OBD Guide

P2185

Engine Coolant Temperature Sensor 2 Circuit High

P2185 is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature Sensor 2 Circuit High. Common causes: coolant temperature sensor 2 malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Unstable engine operation at idle
  • Increased fuel consumption
  • Engine overheating
  • Check Engine Light Is On
  • Reduced engine power

Causes

  • Coolant temperature sensor 2 malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Corrosion or oxidation of contacts
  • Problems with the engine ECU

How to Fix

  1. Check the condition of the coolant temperature sensor 2
  2. Check the integrity of the sensor circuit and connectors
  3. Clean contacts from corrosion and oxidation
  4. Replace sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

Error P2185 by Vehicle Brand

FAQ

What does the P2185 code mean?

P2185 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature Sensor 2 Circuit High

What causes a P2185 error code?

The most common causes of P2185 include: Coolant temperature sensor 2 malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corrosion or oxidation of contacts.

How do I fix a P2185 diagnostic trouble code?

To fix P2185: Check the condition of the coolant temperature sensor 2. Check the integrity of the sensor circuit and connectors. Clean contacts from corrosion and oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2185?

Limited driving only, diagnose soon

How much does it cost to fix P2185?

The estimated repair cost for P2185 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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