P105A
Reductant Pump Low Speed
P105A is an OBD-II diagnostic trouble code meaning: Reductant Pump Low Speed. Common causes: adblue pump malfunction, clogged filters or scr injectors. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reducing engine power (limp mode)
- Increased fuel consumption
- SCR error message on dashboard
- Unpleasant exhaust smell
Causes
- AdBlue pump malfunction
- Clogged filters or SCR injectors
- Pump wiring problems
- Poor quality or freezing of the reagent
- SCR control module malfunction
How to Fix
- Check the level and quality of AdBlue reagent
- Diagnose the AdBlue pump and its electrical circuit
- Check the condition of filters and injectors of the SCR system
- Clean or replace clogged components
- If necessary, replace the AdBlue pump
Related codes
FAQ
What does the P105A code mean?
P105A is an OBD-II diagnostic trouble code that indicates: Reductant Pump Low Speed
What causes a P105A error code?
The most common causes of P105A include: AdBlue pump malfunction; Clogged filters or SCR injectors; Pump wiring problems; Poor quality or freezing of the reagent.
How do I fix a P105A diagnostic trouble code?
To fix P105A: Check the level and quality of AdBlue reagent. Diagnose the AdBlue pump and its electrical circuit. Check the condition of filters and injectors of the SCR system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P105A?
Limited driving only, diagnose soon
How much does it cost to fix P105A?
The estimated repair cost for P105A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat