OBD Guide

P2ADC

Reductant Tank Temperature Sensor B Circuit High

P2ADC is an OBD-II diagnostic trouble code meaning: Reductant Tank Temperature Sensor B Circuit High. Common causes: reagent temperature sensor b fault, open or short circuit in the sensor circuit. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Possible SCR error messages
  • Increased reagent consumption
  • Unstable operation of the SCR system

Causes

  • Reagent temperature sensor B fault
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with the SCR control module
  • Corroded contacts or damaged wiring

How to Fix

  1. Check resistance and temperature sensor readings
  2. Inspect the wiring harness for damage
  3. Check the contacts in the sensor connector
  4. Test the sensor circuit with a multimeter
  5. If necessary, replace the temperature sensor

Related codes

Error P2ADC by Vehicle Brand

FAQ

What does the P2ADC code mean?

P2ADC is an OBD-II diagnostic trouble code that indicates: Reductant Tank Temperature Sensor B Circuit High

What causes a P2ADC error code?

The most common causes of P2ADC include: Reagent temperature sensor B fault; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the SCR control module.

How do I fix a P2ADC diagnostic trouble code?

To fix P2ADC: Check resistance and temperature sensor readings. Inspect the wiring harness for damage. Check the contacts in the sensor connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2ADC?

Yes, but get it checked soon

How much does it cost to fix P2ADC?

The estimated repair cost for P2ADC is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat