P2ACD

Reductant Temperature Sensor B Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reducing engine power (limp mode)
Increased consumption of AdBlue reagent
Increased NOx emissions
SCR error message on instrument panel

Causes

Reagent temperature sensor B fault
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Sensor contamination
Problems with the SCR control unit

How to Fix

Check the temperature sensor parameters using a diagnostic scanner
Inspect the sensor and its connector for damage
Check the integrity and resistance of the wires to the sensor
Clean or replace sensor if necessary
Reset the error and check the system operation

Related codes

P2ACB P2ACC P2ACE