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.
Click here
NEXT | ![]() | END |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "D" Actuator Stuck Off (P27137F)
DESCRIPTION Based on signals from the accelerator position sensor and transmission revolution sensors (NT, NC3 and NC), the ECM controls the shift solenoid valve SLT using a predetermined current. As a result, the line pressure is adjusted to a pressure that is appropriate for the throttle angle and ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Shift Solenoid "A" Circuit Short to Battery or Open (P075015)
DESCRIPTION Changing gears is performed by the ECM turning the shift solenoid valves SL1, SL2, SL3, SL4, SL5, S1 and S2 on and off. If an open or short occurs in any of the shift solenoid valve circuits, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be driven. I ...