Component Inspection

Adaptive Front Lighting System

B1603 CAN Communication Bus Off - Component Inspection

Component inspection

Check CAN communication waveform generation
1. Ignition "OFF
2. Disconnect CAN communication modules.(AFLS ECU, ECM, TCU, VDC ECU, EHPS, ECS,4WD, steering angle sensor).
3. Connect 2 channel scope to DLC CAN HIGH terminal and CAN LOW terminal.
4. IG KEY "ON" after connecting only AFLS ECU to CAN BUS.
(IG KEY "ON" after connecting only "the Control Module(s) to be checked" to CAN BUS.)

Specification




5. Does correct waveform generate from each module?