P1116 Lexus Code - Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
Quick Answer
P1116 Lexus indicates Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System. Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor 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
- P1116 Lexus indicates Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System.
- Common causes
- Common causes include Low engine coolant level, Faulty Engine Coolant Temperature (ECT) sensor, Engine Coolant Temperature (ECT) sensor 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 P1116 Lexus Description
What are the Possible Causes of the DTC P1116 Lexus?
- Low engine coolant level
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
- Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
- Faulty engine coolant thermostat
How to Fix the DTC P1116 Lexus?
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 P1116 Lexus 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 P1116 Lexus code?
Need more information on how to fix the P1116 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1116 Lexus code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1116 Lexus Code
1. What does OBDII code P1116 mean for a Lexus?
P1116 indicates a problem with the coolant temperature sensor circuit for the coolant heat storage system, which may affect engine efficiency and emissions.
2. What are the common symptoms of code P1116 on a Lexus?
Symptoms may include poor fuel efficiency, difficulty starting the engine, engine overheating, or an illuminated check engine light.
3. What causes code P1116 in a Lexus?
Common causes include a faulty coolant temperature sensor, wiring issues, connector damage, or problems with the coolant heat storage system.
4. Can a faulty coolant temperature sensor trigger code P1116?
Yes, a malfunctioning coolant temperature sensor is a primary cause of code P1116.
5. How do I diagnose code P1116 on a Lexus?
Diagnosis typically involves inspecting the coolant temperature sensor, checking wiring and connectors for damage, and testing the coolant heat storage system components.
6. How do I fix code P1116 on my Lexus?
Repairs may include replacing the coolant temperature sensor, repairing damaged wiring, or addressing issues within the coolant heat storage system.
7. Is it safe to drive my Lexus with code P1116?
Driving with code P1116 may lead to engine performance issues or overheating, so it's best to address the problem promptly.
8. How much does it cost to repair code P1116 on a Lexus?
The repair cost varies but typically ranges from $150 to $300, depending on parts and labor.
9. Can code P1116 affect my Lexus' emissions?
Yes, it can increase emissions due to inaccurate temperature readings affecting engine efficiency.
10. Will clearing code P1116 solve the problem on my Lexus?
Clearing the code without fixing the underlying issue will only temporarily remove the check engine light, and the code will likely return.
Discuss the causes and fixes for P1116 Lexus OBDII Code
Code P1116 Lexus 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.
