OBD Guide

P2ACC

Reductant Temperature Sensor B Circuit

P2ACC is an OBD-II diagnostic trouble code meaning: Reductant Temperature Sensor B Circuit. Common causes: reagent temperature sensor b fault, 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 comes on
  • Possible reduction in engine power
  • Increased fuel consumption
  • The SCR system may turn off
  • Possible problems with passing technical inspection

Causes

  • Reagent temperature sensor B fault
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • Problems with the SCR control module
  • Mechanical damage to wiring

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Check sensor connections and connectors
  3. Test sensor resistance
  4. If necessary, replace the temperature sensor
  5. Reset the error code and check the system

Related codes

Error P2ACC by Vehicle Brand

FAQ

What does the P2ACC code mean?

P2ACC is an OBD-II diagnostic trouble code that indicates: Reductant Temperature Sensor B Circuit

What causes a P2ACC error code?

The most common causes of P2ACC include: Reagent temperature sensor B fault; Open or short circuit in the sensor circuit; Poor contact in sensor connectors; Problems with the SCR control module.

How do I fix a P2ACC diagnostic trouble code?

To fix P2ACC: Check the integrity of the wiring to the sensor. Check sensor connections and connectors. Test sensor resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2ACC?

Yes, but get it checked soon

How much does it cost to fix P2ACC?

The estimated repair cost for P2ACC is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat