DTC U1120: Lost Communication With AUTOSTART Stop Control Module
DTC detecting condition:
When reception ID frame is not normally and continuously received for 10 seconds, with ignition switch ON.
(Including when frame is abandoned by DLC (data length code) check error)
NOTE:
Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .