The OBD code P0218 for a Jeep indicates a transmission overtemperature condition.
It affects the transmission system.
Symptoms include the Engine Light being ON.
Causes can be low transmission fluid level or issues with the transmission cooling system.
It is a serious issue that can lead to transmission damage if not addressed promptly.
A possible fix is to check for low fluid level and inspect the transmission cooling system for any problems.
Repair Importance Level | 10.0 (Out of 10) |
Estimated Repair Time | Approximately 1.0 hour |
Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the Jeep p0218 OBD Code
The vehicle may exhibit overheating or transmission shifting issues with fault code P0218 in a Jeep.
- Symptoms: Engine Light ON.
- Transmission may shift erratically.
- Overheating may occur.
- Coolant temperature gauge may show high readings.
- Jeep may go into limp mode.
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Causes of the Jeep p0218 OBD Code
P0218 in a Jeep indicates a transmission overtemperature condition triggered by various factors.
- P0218 can be caused by a low transmission fluid level.
- A malfunction in the transmission cooling system.
- A plugged transmission oil cooler.
Fixing Jeep Error Code p0218 Step By Step
Address the transmission overtemperature condition indicated by Jeep fault code P0218.
- To fix the Jeep OBDII code P0218, start by reviewing the possible causes mentioned above.
- Visually examine the corresponding wiring harness and connectors for any damage.
- Inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Check the transmission fluid level and condition.
- Replace the transmission fluid if it’s dirty or low.
- Inspect the transmission fluid temperature sensor for any faults or wiring issues.
- Replace the transmission fluid temperature sensor if necessary.
- Clear the fault codes and test drive the vehicle to verify the repair.
Cost Of Fixing Jeep p0218 Fault Code
Diagnosing and repairing fault code P0218 in a Jeep involves checking the transmission fluid temperature sensor circuit.
The cost to diagnose and fix a Jeep OBD code P0218 typically ranges from $75 to $150, based on a 1. 0hour repair time.
Factors like shop rates and complexity can affect the final cost.
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Details of the Jeep p0218 OBD Code
Code P0218 in a Jeep indicates an issue with the transmission overtemperature condition.
OBD code P0218 for a Jeep means that the Transmission Over Temperature Condition has been detected.
This code is triggered by the Powertrain Control Module (PCM) when the transmission fluid temperature exceeds a specified limit.
The signal or system involved in this fault code is the transmission fluid temperature sensor, which sends data to the PCM.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing fault code P0218 in a Jeep vehicle.
To diagnose and fix OBDII code P0218 in a Jeep, start by checking the transmission fluid level and condition.
Next, use a voltmeter to test the transmission fluid temperature sensor for proper resistance values.
Inspect the wiring harness and connectors for any damage or corrosion.
Verify TCM power and ground using a multimeter.
Use a scan tool to check TCM communication over the CAN network.
If all checks out, consider reprogramming the TCM.
If the issue persists, the transmission fluid temperature sensor or TCM may need replacement.
FAQ
Common causes of OBD code P0218 in a Jeep: low transmission fluid level, transmission cooling system issues, plugged transmission oil cooler. Inspect wiring, connectors, and components for damage.
OBD code P0218 in a Jeep indicates transmission overheating. Ignoring it can lead to transmission damage. Check fluid level, cooling system, and oil cooler for issues.
Diagnose and repair OBD code P021 by checking for low transmission fluid, issues with the transmission cooling system, or a plugged transmission oil cooler. Inspect wiring and connectors for damage.

Wrap Up
If your Jeep is displaying OBD code P0218 along with transmission slipping, harsh shifting, or overheating, it may indicate a faulty transmission fluid temperature sensor, low transmission fluid level, or issues with the sensor circuit.
To address Jeep OBD code P0218, check the transmission fluid level and condition, inspect the wiring and connectors leading to the transmission fluid temperature sensor, and test the sensor’s resistance to determine if it needs replacement.
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