Engine-Codes - Toyota - P0117 2001 Toyota Highlander

P0117 2001 Toyota Highlander Code - Engine Coolant Temperature Circuit Low Input

- Code Popularity: 3,204 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code P0117 2001 Toyota Highlander?

  • Low engine coolant level
  • Faulty Engine Coolant Temperature (ECT) sensor
  • Faulty engine coolant thermostat
  • Engine Coolant Temperature (ECT) sensor harness is open or shorted
  • Engine Coolant Temperature (ECT) sensor circuit poor electrical connection

|How to Fix the P0117 2001 Toyota Highlander Code?

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 Code P0117 2001 Toyota Highlander?

Labor: 1.0

The cost to diagnose the P0117 2001 Toyota Highlander code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|When is the P0117 2001 Toyota Highlander Code Detected?

An excessively low voltage from the sensor is sent to ECM.

|What are Code P0117 2001 Toyota Highlander Possible Symptoms?

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

|What Does the P0117 2001 Toyota Highlander Code Mean?

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

Engine Coolant Temperature Circuit Low Input

|Need more Information on the P0117 2001 Toyota Highlander Code?

Need more information on how to fix the P0117 2001 Toyota Highlander code? Get Access to Factory Service Manuals

|Need Help with the P0117 2001 Toyota Highlander Code?

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