How to Repair Code B1603 of BCM?

How to repair Code B1603 of BCM?

 

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel : Gasoline

Displacement: 2400cc

How to Repair Code B1603 of BCM?

2011  G 2.4 DOHC  BCM  Cluster Module  B1603 CAN Communication Bus Off

Study Guide and Component Location Study Guide and General Description his is DTC which is related with communication error between CLU and other units. ※Study Body CAN communication Control Units : BCM(Body Control Module), CLU(Cluster), PDM(Power Distribution Module), SMK(Smart Key), SJB(Smart Junction Box). *¹Study CAN (Controller Area Network) : CAN is serial bus communication type which links not only communication system but also control units each other. Study Guide and DTC Description Study This is DTC which is related with communication error between IPM and other units. (※Study Guide Control Units : IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), ECW(Electronic Control Wiper), CLU(Cluster), MFSW(Multi Function Switch), PSM(Power Seat Module), SCM(Steering Control Module), PTM(Power Trunk Lid Module), FBWS(Front Back Warning System)) Case1: Study After short between CLU CAN Low Line and High Line, short to ground together. Case2: Study After short between CLU CAN Low Line and High Line, short to power together. ※Study This code is occurred when It is not possible to transmit data by CAN Line in those way of Software and Hardware. But, It is possible to receive data by CAN Line. Study This code reports BUS OFF status when data transmit error count number is over 255. The purpose is to verify the status of CAN controller and CAN communication line when error is detected. Study According to operation condition, some of module which are connected to CAN line may not detect B1603. Also, B1602 coincides with B1603 at all times. Study Guide   Difference between CAN ERROR and CAN BUS ERROR CAN Error : MIL On, CAN Bus Error : No MIL Study Guide and DTC Detecting Condition Item Detecting Condition Possible Cause DTC Strategy Study • CAN Communication Check • BCM, CLU are not Sleep condition 1. CAN High and Low Line short to ground coincident 2. CAN High and Low Line short to battery coincident Enable Conditions Study • BCM, CLU power on Threshold Value Study • CAN High/Low : 0V or B+ Diagnostic Time Study • Immediately DTC Erasing Time Study • DTC is erased immediately after trouble fixed