P1118 Toyota Code - Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
Quick Answer
P1118 Toyota indicates Coolant Temperature Sensor Circuit High for Coolant Heat Storage System. Common causes include Faulty Engine Coolant Temperature (ECT) sensor for HST, Low engine coolant level, Engine Coolant Temperature (ECT) sensor for HST harness is open or shorted. 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
- P1118 Toyota indicates Coolant Temperature Sensor Circuit High for Coolant Heat Storage System.
- Common causes
- Common causes include Faulty Engine Coolant Temperature (ECT) sensor for HST, Low engine coolant level, Engine Coolant Temperature (ECT) sensor for HST harness is open or shorted.
- 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 P1118 Toyota Description
What are the Possible Causes of the DTC P1118 Toyota?
- Faulty Engine Coolant Temperature (ECT) sensor for HST
- 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 to Fix the DTC P1118 Toyota?
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 P1118 Toyota 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.
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Information for Specific Toyota Models
- P1118 2004 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
- P1118 2005 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
- P1118 2006 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
- P1118 2007 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
- P1118 2008 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
- P1118 2009 Toyota Prius — Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
Frequently Asked Questions about P1118 Toyota Code
1. What are the common symptoms of OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- Common symptoms include engine overheating, rough idling, poor fuel efficiency, and a temperature gauge reading that is consistently high.
2. What are the possible causes of OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- Possible causes include a faulty coolant temperature sensor, a wiring issue in the sensor circuit, low coolant levels, or a malfunctioning cooling system component.
3. How can I diagnose the issue associated with OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- You can diagnose the issue by checking the coolant level, inspecting the coolant temperature sensor and its wiring, and testing the functionality of the cooling system components.
4. Are there any repair tips for addressing OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- Repair tips include replacing the coolant temperature sensor if faulty, repairing any damaged wiring, ensuring proper coolant levels, and checking for any leaks in the cooling system.
5. Can driving with OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System cause further damage?
- Driving with this code can potentially cause engine damage due to overheating, so it is recommended to address the issue promptly to prevent any further damage.
6. Is it safe to continue driving my Toyota with the OBDII code P1118 related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- It is not recommended to continue driving the vehicle with this code, as it can lead to engine overheating and potential damage. It is best to address the issue as soon as possible.
7. Will resetting the OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System fix the problem?
- Resetting the code may temporarily clear the error code, but if the underlying issue is not addressed, it is likely to reoccur. It is important to diagnose and repair the root cause of the problem.
8. How much does it typically cost to repair OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- The cost of repair can vary depending on the exact cause of the issue and the specific repairs needed. It is recommended to consult with a mechanic for an accurate estimate.
9. Can a DIY enthusiast fix OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- Depending on the individual's mechanical skills and knowledge, some DIY enthusiasts may be able to address this issue themselves by following repair guides and using the right tools.
10. How long does it typically take to repair OBDII code P1118 in a Toyota related to the Coolant Temperature Sensor Circuit High for Coolant Heat Storage System?
- The repair time can vary based on the exact issue and the extent of repairs needed. It could range from a quick fix to a more involved repair that may take a few hours to complete.
Discuss the causes and fixes for P1118 Toyota OBDII Code
-
Triangle on after slamming on the brakes to avoid hitting an animal. set code P1118 (temp sensor readings too high, out of range,open connection etc.
I found that AC Fan and cruise control will be affected while error exists. If you are driving with AC and cruise active and this error occurs the Engine will die and you will have to pull over using electric only. Shut off AC and cruise than restart the car and you can drive again.
I opened the hood and touched a few wire connections and my error disappeared it was a bad connection caused by the hard stop previously.
Thanks.
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