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Engine-Codes – Toyota – P0118 2007 Toyota Camry

P0118 2007 Toyota Camry Code - Engine Coolant Temperature Circuit High Input

Quick Answer

The P0118 code for a 2007 Toyota Camry specifically refers to the Engine Coolant Temperature (ECT) Circuit High Input. Common causes include Faulty ECT sensor, Damaged wiring or connectors in the ECT circuit, Malfunctioning ECM. 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
P0118 2007 Toyota Camry indicates Engine Coolant Temperature Circuit High Input.
Common causes
Common causes include Faulty ECT sensor, Damaged wiring or connectors in the ECT circuit, Malfunctioning ECM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0118 2007 Toyota Camry Description

The P0118 code for a 2007 Toyota Camry specifically refers to the Engine Coolant Temperature (ECT) Circuit High Input. This means that the Engine Control Module (ECM) has detected a high voltage signal from the ECT sensor, which is responsible for monitoring the temperature of the engine coolant. The ECT sensor plays a crucial role in the engine's operation by providing the ECM with data on coolant temperature, allowing it to adjust fuel delivery and ignition timing to maintain optimal performance and efficiency.

OBDII Code P0118 2007 Toyota Camry - Engine Coolant Temperature Circuit High Input
P0118 2007 Toyota Camry Code - Engine Coolant Temperature Circuit High Input

Common Causes of P0118 2007 Toyota Camry

  1. Faulty ECT sensor
  2. Damaged wiring or connectors in the ECT circuit
  3. Malfunctioning ECM
  4. Cooling system issues causing high engine temperatures
  5. Corrosion or buildup on ECT sensor contacts

Symptoms of P0118 2007 Toyota Camry

  1. Check Engine Light illuminated on the dashboard
  2. Engine running hotter than normal
  3. Decreased fuel efficiency
  4. Rough idling or stalling
  5. Poor acceleration

How to Fix P0118 2007 Toyota Camry

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the presence of the P0118 code and determine the exact cause.
  2. Inspect the ECT sensor, wiring, and connectors for any damage or corrosion, and replace as necessary.
  3. Test the ECT sensor's resistance using a multimeter to ensure it is functioning within specifications.
  4. Check the cooling system for any leaks, blockages, or malfunctions that may be causing high engine temperatures.
  5. Clear the fault code from the ECM after repairs are complete and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0118 2007 Toyota Camry

The cost of repairing a P0118 code on a 2007 Toyota Camry can vary depending on the specific cause of the issue. In general, replacement of the ECT sensor or any damaged wiring/connectors may cost between $100 to $200 for parts, with additional labor costs ranging from $80 to $150 per hour. If the ECM needs to be replaced, this could incur a higher cost. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific diagnosis and repair required.

When is the Code Detected?

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

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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 P0118 2007 Toyota Camry Code

1. What does the OBDII code P0118 indicate on a 2007 Toyota Camry?

The P0118 code indicates that the Engine Coolant Temperature (ECT) sensor is sending a higher voltage signal than expected to the Engine Control Module (ECM), suggesting the coolant temperature is implausibly low.

2. What are common symptoms of the P0118 code in a 2007 Toyota Camry?

Common symptoms include an illuminated check engine light, higher or lower than normal engine temperature gauge readings, potential engine overheating, and occasionally poor fuel economy.

3. What could cause a P0118 code to appear on a 2007 Toyota Camry?

Possible causes include a faulty engine coolant temperature sensor, corroded or damaged sensor wiring, a bad electrical connection to the coolant temperature sensor, or a problem with the engine control module.

4. How can I fix the P0118 code on my 2007 Toyota Camry?

To fix the P0118 code, inspect and replace the engine coolant temperature sensor if faulty, repair any damaged wires or connectors, and ensure that the coolant level is adequate and the coolant is not contaminated. Resetting the engine control module after repairs is also recommended.

5. Is it safe to drive my 2007 Toyota Camry with a P0118 code?

While you might be able to drive for a short distance, it's advisable to address the issue promptly as driving with an incorrect coolant temperature reading can lead to engine overheating and more severe engine damage.

6. How do I check the engine coolant temperature sensor in a 2007 Toyota Camry?

To check the sensor, use a multimeter to verify the resistance level of the coolant temperature sensor according to the temperature-resistance chart found in the vehicle’s service manual. A significant deviation from expected values indicates a faulty sensor.

7. What tools are required to diagnose the P0118 code on a 2007 Toyota Camry?

You'll need an OBDII scanner to read the code and monitor live data, a multimeter for checking sensor resistance and wiring continuity, and basic hand tools to access and replace the sensor if necessary.

8. Could a P0118 code affect the fuel economy of a 2007 Toyota Camry?

Yes, a malfunctioning coolant temperature sensor can cause the engine control module to miscalculate the fuel mixture, often resulting in increased fuel consumption.

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