B1894 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1894 – Wiper Rear Motor Speed Sense Circuit Failure

 

B1894 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1894 Possible Causes

 

Faulty Wiper Rear Motor,Wiper Rear Motor harness is open or shorted,Wiper Rear Motor circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1894 Description

 

The Body Control Module (BCM) monitors the Wiper Rear Motor Speed Sense. The BCM sets the OBDII code when the Wiper Rear Motor Speed Sense is not to factory specifications.