OBD Guide

P20FC

Reductant Pump B Control Circuit Low

P20FC is an OBD-II diagnostic trouble code meaning: Reductant Pump B Control Circuit Low. Common causes: open or short circuit in the pump control circuit, reagent pump malfunction. Estimated repair cost: $56โ€“167.

Severity
๐Ÿ”ด High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56โ€“167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Possible SCR error messages on the dashboard
  • Increased NOx emissions
  • Regeneration system malfunction

Causes

  • Open or short circuit in the pump control circuit
  • Reagent pump malfunction
  • Relay or fuse problems
  • SCR control unit malfunction
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the pump control circuit
  2. Check fuses and relays of the SCR system
  3. Check connectors and contacts for corrosion
  4. Check the functionality of the reagent pump
  5. Scan the control unit for additional errors

Related codes

Error P20FC by Vehicle Brand

FAQ

What does the P20FC code mean?

P20FC is an OBD-II diagnostic trouble code that indicates: Reductant Pump B Control Circuit Low

What causes a P20FC error code?

The most common causes of P20FC include: Open or short circuit in the pump control circuit; Reagent pump malfunction; Relay or fuse problems; SCR control unit malfunction.

How do I fix a P20FC diagnostic trouble code?

To fix P20FC: Check the integrity of the pump control circuit. Check fuses and relays of the SCR system. Check connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P20FC?

Yes, but get it checked soon

How much does it cost to fix P20FC?

The estimated repair cost for P20FC is $56โ€“167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat