B15C2 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B15C2 – Speed Signal Malfunction

 

B15C2 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B15C2 Possible Causes

 

Faulty Combination Meter Assembly,Combination Meter Assembly harness is open or shorted,Combination Meter Assembly circuit poor electrical connection,Faulty Navigation Receiver Assembly

 

B15C2 Description

 

The Navigation Receiver Assembly receives a vehicle speed signal from the Combination Meter Assembly and information from the navigation antenna, and then adjusts vehicle position. The Navigation Receiver Assembly stores this Diagnostic Trouble Code (DTC) when the difference between the speed information that the navigation antenna receives and the SPD pulse received from the Combination Meter Assembly becomes large.