Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Lost Communication with ECM / PCM "A" (U0100,U0129,U023A)
DESCRIPTION
The power steering ECU assembly receives signals from the ECM, skid control ECU (brake actuator assembly) and forward recognition camera (w/ forward recognition camera system) via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition | Note |
|---|---|---|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | Lost communication with ECM |
| EPS warning light: Does not come on | The ECU judges the system has returned to normal or the power switch is turned on (IG) again | - |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with skid control ECU (Brake actuator assembly) |
| EPS warning light: Comes on | The ECU judges the system has returned to normal or the power switch is turned on (IG) again | - |
| U023A | Lost Communication with Front Camera Module | Lost communication with forward recognition camera |
| EPS warning light: Comes on | The ECU judges the system has returned to normal or the power switch is turned on (IG) again | - |
PROCEDURE
| 1. | GO TO CAN COMMUNICATION SYSTEM |
(a) Go to CAN communication system.
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| NEXT | .gif) | END |
Terminals Of Ecu
TERMINALS OF ECU CHECK POWER STEERING ECU ASSEMBLY *a Component without harness connected (Power Steering ECU Assembly) - - (a) Measure the voltage and resistance according to the value(s ...
Steering Column
...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2026 Owners Manual > Other function: "Information" screen
Display "Information" screen
Go to "Information": "MENU" button → "Info"
Display the fuel consumption.
Display the "USB Photo" screen.
Display the Traffic Map picture.
Available when in a traffic supported
HD Radio coverage area
Display the weather information.
Traffic informat ...
Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Meter / Gauge System: Speed Signal Circuit
DESCRIPTION The combination meter assembly receives the vehicle speed signal from this circuit. The wheel speed sensors produce an output that varies according to the vehicle speed. The wheel speed sensor output is received by the brake actuator assembly (skid control ECU) which uses this informatio ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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