How Body CAN Communication Control B1602.

How Body CAN Communication Control B1602.

How Body CAN Communication Control B1602.

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel: Gasoline

Displacement: 2400cc

2011  G 2.4 DOHC  BCM  Smart Junction Box  B1602 CAN Error

Study Guide and Component Location Study Guide and General Description Study This is DTC which is related with communication error between SJB and other units. ※ Body CAN communication Control Units : Study BCM(Body Control Module), CLU(Cluster), PDM(Power Distribution Module), SMK(Smart Key), SJB(Smart Junction Box). *¹ CAN (Controller Area Network) : Study CAN is serial bus communication type which links not only communication system but also control units each other. DTC Description Type Condition Remark 1 Study CANH Circuit Open B1602 is presented when IC detects one of errors among 7 types under normal communication condition. According to operation condition, some of module which are connected to CAN line may not detect B1602.Also, B1603 can be detected together. 2 Study CANL Circuit Open 3 Study CANH Circuit Short to Power 4 Study CANL Circuit Short to Power 5 Study CANH Circuit Short to Ground 6 Study CANL Circuit Short to Ground 7 StudyCANH and CANL Short to each other DTC Detecting Condition Item Detecting Condition Possible Cause DTC Strategy Study • CAN Communication Check • SJB are not Sleep condition 1. CAN High Line short to battery 2. CAN Low Line short to battery 3. CAN High Line short to ground 4. CAN Low Line short to ground 5. CAN High and Low line short to each other 6. CAN High Line short to 5V power 7. CAN High L Study Enable Conditions • SJB power on (Under normal communication) Study Threshold Value • CAN high : 0V or B+ • CAN low : 0V or B+ Study Diagnostic Time • 2 sec Study DTC Erasing Time • DTC is erased immediately after trouble fixed