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P1116 2005 Toyota Prius Code - Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System

- Code Popularity: 14,973 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1116 2005 Toyota Prius?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Coolant Heat Storage Tank
  • Faulty Engine Coolant Temperature (ECT) sensor for CHS (Coolant Heat Storage)
  • Low engine coolant level
  • Engine Coolant Temperature (ECT) sensor for HST harness is open or shorted
  • Engine Coolant Temperature (ECT) sensor for HST electrical circuit poor connection
  • Faulty engine coolant thermostat
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How to Fix the DTC P1116 2005 Toyota Prius?

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.

Search for P1116 2005 Toyota Prius Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1116 2005 Toyota Prius 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 P1116 2005 Toyota Prius Description

The coolant heat storage (CHS) tank outlet temperature sensor is used for monitoring coolant temperature in the vicinity of the outlet port of the heat storage tank of the CHS system. The resistance of the sensor increases when the CHS tank outlet temperature is low, and conversely, the resistance decreases when the temperature is high. The changes in resistance are reflected in the voltage that is output by the sensor. The ECM monitors the sensor voltage and uses this value to control CHS system properly.

OBDII Code P1116 2005 Toyota Prius - Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System - AutoCodes.com
P1116 2005 Toyota Prius Code - Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System

Need More Information on the Code?

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Code P1116 2005 Toyota Prius comments

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