B237F Code: Meaning, Causes, and Symptoms | OBD2 Codes

B237F – Horn Mute Request Circuit High

 

B237F Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B237F Possible Causes

 

Faulty Horn Mute,Horn Mute harness is open or shorted,Horn Mute circuit poor electrical connection,Faulty Multi-Purpose Module (Police And Taxi Interface Module-PTIM)

 

B237F Description

 

The Multi-Purpose Module (Police And Taxi Interface Module-PTIM) monitors the Horn Mute Request Circuit. The Diagnostic Trouble Code (DTC) sets when the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) has detected the Horn Mute Signal circuit above a calibrated value.