OBD Guide

P205E

Reductant Tank Temperature Sensor A Circuit Intermittent/Erratic

P205E is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor A Circuit Intermittent/Erratic. Common causes: damage to the sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $28–67.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–67 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • Reduced engine power
  • Possible transition to emergency mode
  • Unstable operation of the SCR system

Causes

  • Damage to the sensor wiring harness
  • Poor contact in the sensor connector
  • Temperature sensor malfunction
  • Short circuit in the circuit
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor wiring harness
  2. Clean and check the contacts in the connector
  3. Check the resistance of the temperature sensor
  4. Replace temperature sensor if necessary
  5. Reset the error code and check the system

Related codes

Error P205E by Vehicle Brand

FAQ

What does the P205E code mean?

P205E is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor A Circuit Intermittent/Erratic

What causes a P205E error code?

The most common causes of P205E include: Damage to the sensor wiring harness; Poor contact in the sensor connector; Temperature sensor malfunction; Short circuit in the circuit.

How do I fix a P205E diagnostic trouble code?

To fix P205E: Check the integrity of the sensor wiring harness. Clean and check the contacts in the connector. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P205E?

Yes, but get it checked soon

How much does it cost to fix P205E?

The estimated repair cost for P205E is $28–67. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat