Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Calibration
CALIBRATION
DESCRIPTION
(a) When the 4WD ECU assembly is replaced with a known good one from another vehicle or the acceleration sensor (airbag ECU assembly*1 or yaw rate sensor assembly*2) is replaced, perform calibration.
(b) Follow the chart to perform calibration.
| Part Replaced | Necessary Operation |
|---|---|
| 4WD ECU assembly (When replaced with a known good one from another vehicle) | Clear zero point calibration data |
| Acceleration sensor (airbag sensor assembly)*1 Acceleration sensor (yaw rate sensor assembly)*2 |
|
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HINT:
- When the 4WD ECU assembly is replaced with a new one, calibration is unnecessary.
- *1: w/ Optitron Meter Type
- *2: w/ TFT Meter Type
PERFORM CALIBRATION
(a) Clear the zero point calibration data.
(1) Turn the engine switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream on.
(5) Enter the following menus: Chassis / Four Wheel Drive / Utility / Reset Memory.
Chassis > Four Wheel Drive > Utility| Tester Display |
|---|
| Reset Memory |
(6) Operate the Techstream to clear the data.
System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method
*1: w/ Optitron Meter Type
*2: w/ TFT Meter Type Skid control ECU (Brake actuator asse ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Steering System: Torque Sensor Zero Point Adjustment Incomplete (C1516)
DESCRIPTION This DTC does not indicate a malfunction. The power steering ECU assembly stores this DTC when it determines that torque sensor zero point calibration has not completed. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Intermediate Shaft Speed Sensor "A" Circuit Short to Battery (P079112,P079114,P079131)
DESCRIPTION The transmission revolution sensor (NC) detects the rotation speed of the counter gear which shows the output shaft speed of automatic transaxle assembly. Based on the transmission revolution sensor (NC) signal and the transmission revolution sensor (NT and NC3) signals, the ECM controls ...
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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