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P0218 on Chrysler: Symptoms, Causes & Fix

Transmission Fluid Overtemperature Condition

Official technical diagnostic wire for fault code P0218 specifically affecting Chrysler vehicles (Pacifica, Pacifica Hybrid, 300, Voyager).

Sensor Voltage Ref
0.1V – 5.0V Ref
Chrysler Factory Standard
CAN Bus Speed
500 kbps CAN-FD
ISO 15765-4 Diagnostic Bus
Drivability Status
Not Recommended
Critical urgency level
Est. Repair Cost
$180 - $2,500 (DIY: $60 - $200)
Parts & Labor DIY
Model-Specific Diagnostic Wires

Select Your Chrysler Model for P0218:

4 Models Available

1. Common Symptoms on Chrysler Vehicles

When Chrysler Engine Control Modules (ECM) trigger fault code P0218, drivers typically report:

Transmission Temperature Warning light or Check Engine Light on Chrysler Powertrains
Burnt transmission fluid smell on Chrysler Powertrains
Transmission slipping, delayed gear engagement, or harsh shifting on Chrysler Powertrains
Vehicle entering Limp Mode / stuck in 2nd or 3rd gear on Chrysler Powertrains

2. Root Causes on Chrysler Engines

Historical diagnostic claims across Chrysler engines point to the following failure distribution:

55%
Severe towing or hauling exceeding vehicle GCWR rating (Chrysler OEM Part)
25%
Low or burnt transmission fluid (Chrysler OEM Part)
12%
Clogged transmission auxiliary cooler or restricted lines (Chrysler OEM Part)
8%
Faulty transmission cooling thermostat or auxiliary fan (Chrysler OEM Part)
8%
Failing torque converter clutch generating extreme frictional heat (Chrysler OEM Part)

3. Step-by-Step Fix Protocol for Chrysler

01
Pull Over and Cool Down

Safely park, leave engine idling in Park for 5 minutes to let transmission cooler lower fluid temperature. on Chrysler engines.

Required Tool: None
02
Check Transmission Fluid Level & Condition

Check dipstick with engine at warm idle. If fluid is dark brown/black or smells burnt, it must be drained and replaced. on Chrysler engines.

Required Tool: Clean Rag
03
Inspect Transmission Cooler for Blockage

Check front auxiliary transmission cooler for mud, bugs, or bent fins restricting airflow. on Chrysler engines.

Required Tool: Flashlight, Fin Comb
04
Perform Transmission Fluid & Filter Service

Drop transmission pan, replace internal filter, clean magnet, install new pan gasket, and refill with OEM synthetic transmission fluid. on Chrysler engines.

Required Tool: Pan Catch, Socket Set, OEM Fluid & Filter Kit
05
Clear Trouble Codes & Monitor Live TFT PID

Clear DTCs and monitor Transmission Fluid Temperature PID on scanner (normal operating range: 175°F–200°F). on Chrysler engines.

Required Tool: OBD-II Scanner with Transmission Telemetry
Recommended Parts & Testing Tools

Equipment for Diagnosing Chrysler (P0218)

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Direct-Fit Replacement Part

Chrysler OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Chrysler.

$45 – $95 Prime
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Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
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BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

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4. Chrysler P0218 Frequently Asked Questions

What does code P0218 mean on a Chrysler?

On Chrysler vehicles, P0218 indicates that the Engine Control Module (ECM) detected transmission fluid overtemperature condition. This typically points to Severe towing or hauling exceeding vehicle GCWR rating or Low or burnt transmission fluid.

Can I continue driving my Chrysler with code P0218?

No. Pull over and allow transmission to cool immediately. Overheating transmission fluid (>260°F) burns clutches and destroys seals. Because this code carries a Critical severity rating on Chrysler powertrains, we recommend scanning live data values promptly to prevent secondary damage.

How much does it cost to fix code P0218 on a Chrysler?

Estimated DIY parts cost ranges from $180 - $2,500 (DIY: $60 - $200), while professional shop repairs at an authorized Chrysler dealership or independent specialist typically range from $180 to $380 including diagnostic labor.