C1377 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1377 – Capacitor Malfunction

 

C1377 Possible Symptoms

 

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

 

C1377 Possible Causes

 

Faulty Brake Control Power Supply Assembly (Capacitor),Brake Control Power Supply Assembly harness is open or shorted,Brake Control Power Supply Assembly circuit poor electrical connection

 

C1377 Description

 

The Brake Control Power Supply Assembly (Capacitor) provides auxiliary power for brake control when an auxiliary battery (12 V) voltage drops.