P0117 2004 Toyota Highlander Code - Engine Coolant Temperature Circuit Low Input
Quick Answer
The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0117 2004 Toyota Highlander indicates Engine Coolant Temperature Circuit Low Input.
- Common causes
- Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Faulty engine coolant thermostat.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0117 2004 Toyota Highlander Description
What are the Possible Causes of the DTC P0117 2004 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 DTC P0117 2004 Toyota Highlander?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0117 2004 Toyota Highlander code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0117 2004 Toyota Highlander code?
Need more information on how to fix the P0117 2004 Toyota Highlander code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0117 2004 Toyota Highlander code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0117 2004 Toyota Highlander Code
1. What are the common symptoms of OBDII code P0117 in a 2004 Toyota Highlander?
When the Engine Coolant Temperature Circuit Low Input code P0117 triggers, common symptoms can include poor fuel economy, rough idling, engine overheating, and the check engine light illuminating on the dashboard.
2. What causes the OBDII code P0117 in a 2004 Toyota Highlander?
The P0117 code is typically caused by a faulty engine coolant temperature (ECT) sensor, a problem with the ECT sensor circuit, or issues with the wiring connected to the sensor.
3. How can I diagnose the OBDII code P0117 in my 2004 Toyota Highlander?
To diagnose the P0117 code, you can use an OBDII scanner to check for the specific trouble code and then test the ECT sensor's resistance, inspect the wiring for any damage, and verify the sensor's signal to the engine control module.
4. Can a bad thermostat cause the P0117 code in a 2004 Toyota Highlander?
Yes, a malfunctioning thermostat can sometimes lead to the P0117 code if it causes the engine coolant temperature to be too low or if it interferes with the ECT sensor readings.
5. How can I repair the OBDII code P0117 in my 2004 Toyota Highlander?
Repairing the P0117 code typically involves replacing the faulty ECT sensor, repairing any damaged wiring, or addressing any underlying issues that may be affecting the sensor's performance.
6. Is it safe to continue driving with the P0117 code in a 2004 Toyota Highlander?
It is not recommended to drive with the P0117 code present, as it can lead to poor engine performance, potential overheating, and other issues that can cause further damage to the vehicle.
7. Can a dirty or low coolant level trigger the P0117 code in a 2004 Toyota Highlander?
Yes, a low coolant level or dirty coolant can sometimes affect the ECT sensor readings and trigger the P0117 code, so it's important to check and maintain proper coolant levels and cleanliness.
8. How much does it typically cost to repair the P0117 code in a 2004 Toyota Highlander?
The cost of repairing the P0117 code can vary depending on the exact cause of the issue, but it may range from $100 to $300, including parts and labor.
9. Will resetting the check engine light resolve the P0117 code temporarily?
Resetting the check engine light may temporarily turn it off, but if the underlying issue causing the P0117 code is not addressed, the light is likely to come back on once the problem is detected again.
10. Can a DIY enthusiast repair the P0117 code in a 2004 Toyota Highlander?
If you have the necessary tools, knowledge, and experience, you may be able to address the P0117 code yourself by replacing the ECT sensor or fixing wiring issues. However, if you're unsure, it's best to seek professional help to avoid further complications.
Discuss the causes and fixes for P0117 2004 Toyota Highlander OBDII Code
Code P0117 2004 Toyota Highlander comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
