- Controls the damping force.
- When changed to diagnostic mode, indicates any malfunction by outputting DTCs (Diagnostic Trouble Codes).
- Detects the rear body vertical acceleration.
Lexus NX: System Description
Lexus NX Service Manual / Suspension / Suspension Control / Adaptive Variable Suspension System / System Description
SYSTEM DESCRIPTION
ADAPTIVE VARIABLE SUSPENSION SYSTEM DESCRIPTION
(a) The absorber control ECU receives signals from the sensors and switches to control the absorber control actuator (shock absorber assembly). It uses these signals to optimally control the damping force in accordance with the driving conditions and road conditions.
Function of Components:| Component | Function | |
|---|---|---|
| Shock absorber assembly | Absorber control actuator | Changes the damping force. |
| Front acceleration sensor assembly LH | Detects the vertical acceleration of the left front area of the body. | |
| Front acceleration sensor assembly RH | Detects the vertical acceleration of the right front area of the body. | |
| Absorber control ECU (built into rear acceleration sensor) | | |
| Airbag ECU assembly (built into acceleration sensor) | Detects the vehicle's longitudinal and lateral acceleration and deceleration. | |
| Steering sensor | Detects the steering direction and the angle of the steering wheel. | |
| Brake booster with master cylinder assembly | Skid control ECU |
|
| ECM |
| |
| Hybrid vehicle control ECU | Sends the motive force signal to the absorber control ECU. | |
| Integration control and panel assembly | Drive mode select switch | Switches the driving mode. |
| Combination meter assembly | Multi-information display | Indicates the selected condition of the drive mode select switch. |
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the adaptive variable suspension system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Customize Parameters
CUSTOMIZE PARAMETERS Drive Mode Customization "Custom" settings can be changed on the screen of the multi-display. HINT: "Custom" mode can be selected by using the drive mode select switch (integratio
Test Mode Procedure
TEST MODE PROCEDURE TEST MODE PROCEDURE NOTICE:
After replacing the absorber control ECU, it is necessary to perform registration of vehicle identification information. Vehicle identification infor
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Removal
REMOVAL CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. PROCEDURE 1. REMOVE FRONT SEAT ASSEMBLY LH Click here 2. REMOVE FRONT LOWER SEAT CUSHION SHIELD Click here 3. REMOVE FRONT SEAT CUSHION SHIELD LH Click here 4. REMOVE FRONT INNER S
Definition Of Terms
DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.
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