P24CD

Reductant Tank Cap Switch Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Possible engine power limitation
SCR system error message on dashboard
Increased NOx emissions
Possible problems with starting the SCR system

Causes

A loose reagent tank cap
Tank cap sensor malfunction
Open or short circuit in the sensor circuit
Wiring harness damage
Problems with the SCR control unit

How to Fix

Check and close the reagent tank cap tightly.
Check the condition of the lid sensor
Check the integrity of the circuit and connections
Check wiring harness for damage
If necessary, replace the lid sensor

Related codes

P24CE P24CF P203A