Component Inspection

AFLS(LED)
B1603 CAN Communication Bus Off - Inspection/Repair:_:Component Inspection

Component inspection

Check CAN communication waveform generation
1. Ignition "OFF
2. Disconnect CAN communication modules.(TCM, ECM, ESC, SAS, EHPS, SCC, SRS, EPB, Cluster)
3. Connect 2 channel scope to DLC CAN HIGH terminal and CAN LOW termina.
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




Fig.1) CAN LOW and CAN HIGH Commnication Waveform.
5. Does correct waveform generate from each module?