B1363 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1363 – Driver Belt Pretensioner Short to Ground

 

B1363 Possible Symptoms

 

Air Bag Warning Light ON

 

B1363 Possible Causes

 

Faulty Driver Belt Pretensioner,Driver Belt Pretensioner harness is open or shorted,Driver Belt Pretensioner circuit poor electrical connection

 

B1363 Description

 

When the ignition switch is turned to ON, the Sensing and Diagnostic Module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself. Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their normal voltage ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deploy loops. The SDM checks the wiring connection to the driver belt pretensioner by letting the infinitesimal current flow through the internal circuit and verify the resistance.