P2ADA

Reductant Tank Temperature Sensor B Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced efficiency of the SCR system
Possible increase in NOx emissions
In some cases - limiting engine power

Causes

Reagent tank B temperature sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Corroded contacts or damaged wiring
Control module malfunction (rare)

How to Fix

Check the integrity of the sensor wiring and connectors
Check the resistance and voltage at the sensor
Replace temperature sensor if necessary
Clear contacts and restore connections
Check the operation of the system after repair

Related codes

P2AD9 P2ADB P2ADC