AutoCodesToyota – P0116 1999 Toyota Camry

P0116 1999 Toyota Camry Code - Engine Coolant Temperature Circuit Range/Performance Problem

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
P0116 1999 Toyota Camry indicates Engine Coolant Temperature Circuit Range/Performance Problem.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 6,161
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 30, 2024
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Code P0116 1999 Toyota Camry Description

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.
OBDII Code P0116 1999 Toyota Camry - Engine Coolant Temperature Circuit Range/Performance Problem - AutoCodes.com
P0116 1999 Toyota Camry Code - Engine Coolant Temperature Circuit Range/Performance Problem

What are the Possible Causes of the DTC P0116 1999 Toyota Camry?

  • 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 P0116 1999 Toyota Camry?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0116 1999 Toyota Camry 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 P0116 1999 Toyota Camry code?

Need more information on how to fix the P0116 1999 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0116 1999 Toyota Camry Code

1. What are the common symptoms of OBDII code P0116 in a 1999 Toyota Camry?

The common symptoms include engine overheating, poor fuel economy, rough idling, and the Check Engine light illuminating on the dashboard.

2. What does the OBDII code P0116 indicate in a 1999 Toyota Camry?

OBDII code P0116 in a 1999 Toyota Camry indicates an Engine Coolant Temperature Circuit Range/Performance Problem.

3. What are the possible causes of OBDII code P0116 in a 1999 Toyota Camry?

Possible causes include a faulty engine coolant temperature sensor, issues with the coolant temperature sensor circuit, low coolant levels, or a malfunctioning thermostat.

4. How can I diagnose the OBDII code P0116 in my 1999 Toyota Camry?

You can diagnose the code by using an OBDII scanner to read the code and check the engine coolant temperature sensor's resistance values. Inspect the sensor wiring and connections for any damage or corrosion.

5. Can I continue driving my 1999 Toyota Camry with OBDII code P0116?

It is not recommended to drive your vehicle with OBDII code P0116, as it can lead to engine overheating and potentially cause further damage. It is best to address the issue promptly.

6. How can I repair OBDII code P0116 in my 1999 Toyota Camry?

Repair options include replacing the engine coolant temperature sensor, checking and repairing any damaged wiring or connections, ensuring proper coolant levels, and verifying the thermostat's functionality.

7. Will resetting the Check Engine light resolve OBDII code P0116 in my 1999 Toyota Camry?

Simply resetting the Check Engine light will not resolve the underlying issue causing OBDII code P0116. It is essential to diagnose and address the root cause of the problem.

8. How much does it cost to repair OBDII code P0116 in a 1999 Toyota Camry?

The cost of repair can vary depending on the exact cause of the issue and whether you choose to DIY or seek professional help. Replacing the engine coolant temperature sensor typically costs between $50 to $150.

9. Are there any preventive measures to avoid OBDII code P0116 in a 1999 Toyota Camry?

Regular maintenance, such as checking coolant levels, inspecting sensor connections, and ensuring timely thermostat replacements, can help prevent OBDII code P0116 in your 1999 Toyota Camry.

10. Can OBDII code P0116 affect the overall performance of my 1999 Toyota Camry?

Yes, OBDII code P0116 can affect the overall performance of your vehicle by causing issues like poor fuel efficiency, engine overheating, and potential damage if left unresolved.

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