P1931 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P1931 – Fuel Additive Pump Control Circuit/Open

 

P1931 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P1931 Possible Causes

 

Faulty Fuel Additive Level Pump,Fuel Additive Level Pump harness is open or shorted,Fuel Additive Level Pump circuit poor electrical connection

 

P1931 Description

 

Fuel Additive Pump Control Circuit/Open is the generic description for the P1931 code, but the manufacturer may have a different description. Currently we have no further information abouth the P1931 OBDII code.