OBD Guide

P205D

Reductant Tank Temperature Sensor A Circuit High

P205D is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor A Circuit High. Common causes: reagent temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Possible SCR system error messages
  • Increased urea consumption
  • Increased NOx emissions

Causes

  • Reagent temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Problems with the SCR control unit
  • Sensor is dirty or damaged

How to Fix

  1. Check the condition of the sensor and its connector
  2. Check the sensor circuit for open and short circuit
  3. Check reference voltage and sensor signal
  4. If necessary, replace the temperature sensor
  5. Reset the error and check the system operation

Related codes

Error P205D by Vehicle Brand

FAQ

What does the P205D code mean?

P205D is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor A Circuit High

What causes a P205D error code?

The most common causes of P205D include: Reagent temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the SCR control unit.

How do I fix a P205D diagnostic trouble code?

To fix P205D: Check the condition of the sensor and its connector. Check the sensor circuit for open and short circuit. Check reference voltage and sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P205D?

Yes, but get it checked soon

How much does it cost to fix P205D?

The estimated repair cost for P205D is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat