AutoCodes – Dodge – P205C Dodge

P205C Dodge Code - Reductant Tank Temperature Sensor Circuit Low

Quick Answer

The Reductant Tank Temperature Sensor is a variable resistor used to measure the temperature inside the reductant tank. Common causes include Faulty Reductant Tank Temperature Sensor, Reductant Tank Temperature Sensor harness is open or shorted, Reductant Tank Temperature Sensor circuit poor electrical connection. 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: P205C Dodge indicates Reductant Tank Temperature Sensor Circuit Low.
Common causes: Common causes include Faulty Reductant Tank Temperature Sensor, Reductant Tank Temperature Sensor harness is open or shorted, Reductant Tank Temperature Sensor circuit poor electrical connection.
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 1,433

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 21, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P205C Dodge Description

The Reductant Tank Temperature Sensor is a variable resistor used to measure the temperature inside the reductant tank. The sensor is wired to the Reductant Control Module, which acquires the sensor signal and sends it to the Engine Control Module (ECM) via serial data. The Reductant Control Module supplies 5 V to the reductant temperature sensor signal circuit and a ground for the low reference circuit. The Diagnostic Trouble Code (DTC) will be set when the difference between reductant temperature sensor signal and exhaust gas temperature sensor signals is outside a calibrated range.

OBDII Code P205C Dodge - Reductant Tank Temperature Sensor Circuit Low - AutoCodes.com — P205C Dodge Code - Reductant Tank Temperature Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P205C Dodge?

Faulty Reductant Tank Temperature Sensor
Reductant Tank Temperature Sensor harness is open or shorted
Reductant Tank Temperature Sensor circuit poor electrical connection

How to Fix the DTC P205C Dodge?

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 P205C Dodge 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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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.