Engine-Codes - Toyota - P1116 2005 TOYOTA PRIUS

P1116 2005 TOYOTA PRIUS - Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1116 2005 TOYOTA PRIUS Possible 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

How is the P1116 2005 TOYOTA PRIUS code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1116 2005 TOYOTA PRIUS code

Labor: 1.0

The cost to diagnose the P1116 2005 TOYOTA PRIUS code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

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

P1116 2005 TOYOTA PRIUS Meaning

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.

More Information

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