OBD Guide

P24CE

Reductant Tank Cap Switch Circuit High

P24CE is an OBD-II diagnostic trouble code meaning: Reductant Tank Cap Switch Circuit High. Common causes: adblue tank cap sensor faulty, short circuit in the sensor circuit. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Is On
  • AdBlue error message on the dashboard
  • Reduced engine power (in some cases)
  • Increased fuel consumption
  • Problems with passing inspection due to emissions

Causes

  • AdBlue tank cap sensor faulty
  • Short circuit in the sensor circuit
  • Broken or damaged wiring
  • Oxidation of contacts in connectors
  • Problems with the SCR control unit

How to Fix

  1. Check the condition of the AdBlue tank cap and its sensor
  2. Carry out diagnostics of the sensor circuit (resistance, voltage)
  3. Inspect wiring and connectors for damage
  4. If necessary, replace the sensor or tank cap
  5. Reset the error and check if it appears again

Related codes

Error P24CE by Vehicle Brand

FAQ

What does the P24CE code mean?

P24CE is an OBD-II diagnostic trouble code that indicates: Reductant Tank Cap Switch Circuit High

What causes a P24CE error code?

The most common causes of P24CE include: AdBlue tank cap sensor faulty; Short circuit in the sensor circuit; Broken or damaged wiring; Oxidation of contacts in connectors.

How do I fix a P24CE diagnostic trouble code?

To fix P24CE: Check the condition of the AdBlue tank cap and its sensor. Carry out diagnostics of the sensor circuit (resistance, voltage). Inspect wiring and connectors for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24CE?

Yes, but get it checked soon

How much does it cost to fix P24CE?

The estimated repair cost for P24CE is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat