B1888 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1888 – Passenger-Side Air Bag Circuit Short To Ground

 

B1888 Possible Symptoms

 

Air Bag Warning Light ON

 

B1888 Possible Causes

 

Faulty Passenger-Side Air Bag Module,Passenger-Side Air Bag Module harness is open or shorted,Passenger-Side Air Bag Module circuit poor electrical connection,Faulty Restraints Control Module (RCM)

 

B1888 Description

 

The Restraints Control Module (RCM) checks Passenger-Side Air Bag Module circuit for shorts to ground by monitoring voltage at RCM harness connector. If RCM detects short to ground on either terminal, it will store Diagnostic Trouble Code (DTC) B1888 in memory and the Air Bag warning light.