Diesel Data: Automotive Repair

B1655

DTC B1650 CRASH RECORDED - FRONTAL (REPLACE SRSCM)

DTC B1651 CRASH RECORDED - DRIVER SIDE (REPLACE SRSCM)

DTC B1652 CRASH RECORDED - PASSENGER SIDE (REPLACE SRSCM)

DTC B1655 CRASH RECORDED - PASSENGER SIDE WITH PAB INHIBITED (REPLACE SRSCM)

DTC B1657 CRASH RECORDED - BELT PRETENSIONER ONLY

DTC B1658 BELT PRETENSIONER 6 TIMES DEPLOYMENT (REPLACE SRSCM)

DTC B1659 REAR IMPACT DETECTED

DTC B1670 CRASH RECORDED IN FULL STAGE - FRONTAL (REPLACE SRSCM)

DTC DESCRIPTION
When a deployment of any restraint system for seat belt pretensioner and frontal and side air bags occurs, or when a rear crash is detected, the crash output is activated. The purpose of this output is to signal the BCM(Body Control Module) in the vehicle to unlock the vehicle doors. If a crash output is in progress, a second crash output signal will not be sent unless the first one is completed. The SRSCM doesn't perform diagnostics on the crash output function. After a frontal or side crash event is sensed and algorithm makes firing decision, above mentioned crash record is stored after squib deployment.

DTC Detecting Condition:






Schematic Diagram:






INSPECTION PROCEDURE
If the above mentioned DTC is confirmed it can't be cleared by Hi-Scan tool except for the B1657 and B1659, and the SRSCM should be replaced. However, for the DTC B1657, Belt pretensioner only deployment, it can be erased for 5 times and the SRSCM can be reusable. If the deployment of Belt pretensioner reaches to 6 times, the SRSCM will set DTC B1658 and the SRSCM should be replaced accordingly. The DTC B1659, Rear impact detected, also can be erased.