AutoCodesRAM – P0218 RAM

P0218 RAM Code - High Temperature Operation Activated

Quick Answer

The flow of transmission fluid starts in the bottom pan and is drawn through the filter, control valve body assembly, transmission case and into the oil pump assembly. Common causes include Low transmission fluid level, Transmission cooling system concerns, Transmission oil cooler plugged. 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
P0218 RAM indicates High Temperature Operation Activated.
Common causes
Common causes include Low transmission fluid level, Transmission cooling system concerns, Transmission oil cooler plugged.
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.
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Code Popularity 365
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 09, 2022
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Code P0218 RAM Description

The flow of transmission fluid starts in the bottom pan and is drawn through the filter, control valve body assembly, transmission case and into the oil pump assembly. The oil pump assembly pressurizes the fluid and directs it to the pressure regulator valve where it becomes the main supply of fluid to the various components and hydraulic circuits in the transmission. Hot fluid exiting the torque converter flows through the converter clutch apply valve and into the transmission cooler lines to the oil cooler located in the vehicle radiator (and auxiliary cooler if equipped). From the cooler, fluid returns to cool and lubricate the front of the transmission. In forward drive ranges, D4 fluid from the manual valve is routed through an orificed cup plug in the rear of the transmission case to feed the rear lube fluid circuit.
OBDII Code P0218 RAM - High Temperature Operation Activated - AutoCodes.com
P0218 RAM Code - High Temperature Operation Activated

What are the Possible Causes of the DTC P0218 RAM?

  • Low transmission fluid level
  • Transmission cooling system concerns
  • Transmission oil cooler plugged

How to Fix the DTC P0218 RAM?

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 P0218 RAM 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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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 P0218 RAM Code

1. What does the OBDII code P0218 mean for a RAM vehicle?

Code P0218 indicates "High Temperature Operation Activated," meaning the transmission fluid temperature has exceeded its safe threshold.

2. What are the common symptoms of code P0218 in a RAM?

Symptoms may include slipping transmission, delayed shifting, overheating warnings, reduced vehicle performance, and possible transmission failure.

3. What causes the P0218 code to appear?

Common causes include a damaged transmission cooler, low transmission fluid levels, contaminated fluid, or excessive towing or heavy loads.

4. Can driving with code P0218 damage my RAM vehicle?

Yes, driving with this code can lead to severe transmission damage due to overheating, which may result in costly repairs.

5. How do I fix the P0218 code on my RAM?

Repairs may include checking and replacing the transmission fluid, inspecting the transmission cooler, repairing leaks, or addressing issues with the cooling system.

6. How do I prevent the P0218 code from recurring on my RAM?

Regularly check transmission fluid levels and quality, perform routine maintenance, and avoid overloading or towing beyond the vehicle’s capacity.

7. Does the P0218 code always mean the transmission is failing?

No, it may simply indicate overheating due to external factors, but ignoring it can lead to serious transmission damage.

8. Can a faulty transmission temperature sensor trigger the P0218 code?

Yes, a malfunctioning temperature sensor can inaccurately detect high temperatures and trigger this code.

9. Is a professional mechanic required to fix the P0218 code?

While some issues, like fluid replacement, can be DIY, a mechanic is recommended for diagnosing and addressing more complex problems.

10. How much does it typically cost to repair a P0218 code on a RAM?

Costs vary depending on the root cause, ranging from $50 for fluid replacement to upwards of $1,000 for cooling system or transmission repairs.

Discuss the causes and fixes for P0218 RAM OBDII Code

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