B1652

DTC B1652 Crash Recorded in Passenger Side Airbag

Circuit Diagram:

Circuit 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.
In case of passenger side airbag inflation by side impact, the SDM maintains warning lamp "ON" and then all the airbag system should be checked including pretensioners and also side airbag sensor, wiring should be replaced. In case, the passenger side airbag inflation by side impact counts over 5, the SDM should also be replaced.

DTC B1652 Will Set When

- The history of passenger side airbag inflation or belt pretensioner explosion is in the SDM.

Troubleshooting

The sensing and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is OFF and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not begin service until one minute has passed after disconnecting power to SDM. Otherwise, injury could result.
During service procedure, be very careful when handling the SDM. Never strike or jar the SDM. Never power the supplemental inflatable restraints (SIR) when the SDM is not rigidly attached to the vehicle. All SDM mounting bolts must be carefully tightened, and the arrow on the SDM must be point toward the front of the vehicle to ensure proper operation of the SIR. The SDM could be activated if it is powered when it is not rigidly attached to the vehicle, resulting in unexpected deployment and possible injury.