Timeout on CAN in communication with BDM
Check the BDM for related DTCs. • Check other ECUs for DTCs indicating time-out from the unit BDM. • Check unit BDM: - Wiring to Supply Voltage (30), System Ground (31), and WakeUp - Check CAN connections • Check CMS::ECU (E113) connection to Subbus2 CAN (wiring and connectors). The battery should be disconnected. - Disconnect harness connector on ECU side, and measure the resistance between pins A35 and A38. It should be approximately 60 ohm (two 120 ohm termination resistors in CAN-bus network).
What you'll see
No driver-visible symptom recorded.
System reaction
• Instrument cluster will display warning(s).
Diagnostic depth
Communication error. Communication with the Battery Data Module (BDM) is interrupted
• Faulty BDM unit • BDM unit disconnected from the subCAN2 bus