SYSTEM DIAGRAM
Communication Table | Sender | Receiver | Signal | Line |
|---|---|---|---|
| Air Conditioning Amplifier Assembly | Main Body ECU (Multiplex Network Body ECU) | Mirror heater drive request signal | CAN |
| Main Body ECU (Multiplex Network Body ECU) | Outer Mirror Control ECU Assembly |
| CAN |
| Outer Mirror Control ECU Assembly | Main Body ECU (Multiplex Network Body ECU) |
| CAN |
| Certification ECU (Smart Key ECU Assembly) | Main Body ECU (Multiplex Network Body ECU) | Key ID signal | CAN |
| ECM | Main Body ECU (Multiplex Network Body ECU) | Reverse signal | CAN |
| Radio Receiver Assembly | Air Conditioning Amplifier Assembly | Mirror heater switch (rear window defogger switch) operation signal | LIN |
| Multiplex Network Master Switch Assembly | Main Body ECU (Multiplex Network Body ECU) | Outer mirror switch signal | LIN |
Parts Location
System DescriptionLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) (B1575)
DESCRIPTION The radio receiver assembly and multi-display assembly are connected via video signal (digital) lines. This DTC is stored when a video signal (digital) line is disconnected. DTC No. Detection Item DTC Detection Condition Trouble Area B1575 GVIF Disconnected (from EMV/MM In ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Seat Heater System: Terminals Of Ecu
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the J43 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconnected. ...