Jeep P0116
Engine Coolant Temperature Sensor 1 Performance. Discussion: Before performing published diagnostic routines for the above symptoms, ask th
Quick answer
For 2024–2025 Jeep Wagoneer vehicles in the US, P0116 is identified in verified manufacturer communication S2518000004 as “Engine Coolant Temperature Sensor 1 Performance.” The communication associates the code with a remote-start function that is not working. The provided evidence does not establish driving or charging safety, a repair, or a specific root cause.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does P0116 mean?
For 2024–2025 Jeep Wagoneer vehicles in the US, P0116 is identified in verified manufacturer communication S2518000004 as “Engine Coolant Temperature Sensor 1 Performance.” The communication associates the code with a remote-start function that is not working. The provided evidence does not establish driving or charging safety, a repair, or a specific root cause.
2. Technical explanation
P0116 is a powertrain-control-module (PCM) diagnostic trouble code described by the verified manufacturer communication as Engine Coolant Temperature Sensor 1 Performance. The official communication says that, when investigating a concern that remote start is not working, a PCM-stored P0116 may be present. It directs technicians to ask the questions in the communication before performing published diagnostic routines; the supplied evidence does not include those questions or the complete diagnostic procedure.
3. What system is affected?
Powertrain Control Module (PCM); Engine Coolant Temperature Sensor 1 performance monitoring.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Remote start function may not be working.
- A P0116 code may be set in the PCM.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Have the vehicle evaluated by an authorized Jeep service provider if remote start is inoperative and P0116 is present.
- Do not attempt high-voltage or other repair procedures based on the supplied evidence; no repair procedure is provided.
10. Step-by-step troubleshooting
- Confirm whether the remote-start function is not working.
- Check whether P0116 is stored in the PCM.
- Use the manufacturer’s published diagnostic routine and the questions referenced in communication S2518000004. The supplied evidence does not provide the full routine.
11. When to contact service
Contact an authorized Jeep service provider for diagnosis using manufacturer communication S2518000004 and applicable published procedures.
12. What the service center may check
- Verify the remote-start concern.
- Retrieve PCM diagnostic trouble codes and confirm P0116 if present.
- Follow the published diagnostic routine referenced by the manufacturer communication.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Jeep Wagoneer · 2024–2025 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 11017871: S2518000004, published May 3, 2025. It applies in the supplied evidence to 2024–2025 Jeep Wagoneer vehicles in the US and addresses an inoperative remote-start concern where PCM DTC P0116 may be set.
16. Recall information
- No recall is established by the supplied verified evidence.
17. Official manufacturer information
Official source: NHTSA manufacturer communication PDF 11017871, S2518000004: https://static.nhtsa.gov/odi/tsbs/2025/MC-11017871-0001.pdf
19. Frequently asked questions
What does P0116 mean for the covered Jeep Wagoneer?
The verified manufacturer communication describes P0116 as Engine Coolant Temperature Sensor 1 Performance.
Can P0116 affect remote start?
Yes. The official communication states that a PCM P0116 may be present when the remote-start function is not working.
Is it safe to drive with P0116?
Not yet established by verified evidence.
What repair fixes P0116?
Not yet established by verified evidence. The supplied communication references published diagnostic routines but does not provide a repair resolution.