OBD Guide

P2ADB

Reductant Tank Temperature Sensor B Circuit Low

P2ADB is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor B Circuit Low. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. 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
  • Increased fuel consumption
  • SCR system fault message
  • Increased NOx emissions

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Reagent temperature sensor malfunction
  • Wiring harness damage
  • Problems with the SCR control module

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the resistance of the temperature sensor
  4. Replace reagent temperature sensor if necessary
  5. Check and update SCR control module software

Related codes

Error P2ADB by Vehicle Brand

FAQ

What does the P2ADB code mean?

P2ADB is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor B Circuit Low

What causes a P2ADB error code?

The most common causes of P2ADB include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Reagent temperature sensor malfunction; Wiring harness damage.

How do I fix a P2ADB diagnostic trouble code?

To fix P2ADB: Check the integrity of the sensor circuit. Inspect connectors and contacts for corrosion or damage. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2ADB?

Yes, but get it checked soon

How much does it cost to fix P2ADB?

The estimated repair cost for P2ADB is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat