Main Body ECU Communication Stop Mode [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

Detection Item	Symptom	Trouble Area
Main Body ECU Communication Stop Mode	Either condition is met: "Main Body" is not displayed on the CAN Bus Check screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [08/2013 - ] Communication system DTCs (DTCs that start with U) that correspond to "Main Body ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DIAGNOSIS SYSTEM [08/2013 - ]	Main body ECU (multiplex network body ECU) branch line or connector Power source circuit of main body ECU (multiplex network body ECU) or Instrument panel junction block assembly Main body ECU (multiplex network body ECU) ground circuit or instrument panel junction block assembly Main body ECU (multiplex network body ECU) or instrument panel junction block assembly