Diesel Data: Automotive Repair

B1369




DTC B1369

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform a turn-on test to diagnose critical malfunctions within the SDM itself.

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 inspects the wiring connection to the passenger belt pretensioner module by letting the perpetual current flow through the internal circuit and verify the resistance.

Conditions for Setting the DTC

* The belt pretensioner wiring of the passenger high is shorted to ground.

* The belt pretensioner wiring of the passenger low is shorted to ground.