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P2181 Porsche Code - Thermostat Stuck Open

- Code Popularity: 13,340 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P2181 Porsche?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low coolant level
  • Stuck or leaking thermostat
  • Faulty Engine Coolant Temperature Sensor
  • Engine Coolant Temperature Sensor harness is open or shorted
  • Engine Coolant Temperature Sensor circuit poor electrical connection
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How to Fix the DTC P2181 Porsche?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2181 Porsche code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P2181 Porsche Description

This fault is stored if the engine is not heated from below 40 °C (104 °F) to over 60 °C (140 °F) after throughput of a defined mass air flow.
This indicates that the thermostat may be stuck in open position.
An unchanged temperature signal may also be caused by a faulty sensor, however. Check the fault memory entry.

OBDII Code P2181 Porsche - Thermostat Stuck Open - AutoCodes.com
P2181 Porsche Code - Thermostat Stuck Open

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Code P2181 Porsche comments

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