- Millimeter wave radar sensor assembly temperature malfunction
- Millimeter wave radar sensor assembly voltage malfunction
Lexus NX: Diagnosis System
Lexus NX Service Manual / Vehicle Interior / Pre-collision / Pre-collision System / Diagnosis System
DIAGNOSIS SYSTEM
FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message displayed on the multi-information display.
| Master Warning Indicator | Warning Message | Detail | DTC/RoB | PCS warning light |
|---|---|---|---|---|
| Illuminated | "Pre-Collision System Malfunction Visit Your Dealer" is displayed | Pre-collision system malfunctioning | Stored | Illuminates |
| Not illuminated | "Pre-Collision System Unavailable" is displayed | Millimeter wave radar sensor assembly misaligned | Stored | Illuminates |
| Not illuminated | "Pre-Collision System Unavailable" is displayed | | Stored | Illuminates |
| Not illuminated | "Pre-Collision System Unavailable Clean Sensor" is displayed | Foreign matter attached to millimeter wave radar sensor assembly | Stored | Illuminates |
| Not illuminated | "Front Camera Unavailable" is displayed |
| Stored | Illuminates |
| Not illuminated | "Front Camera Unavailable See Owner's Manual" is displayed |
| Stored | Illuminates |
| Not illuminated | "VSC Turned Off Pre-Collision Brake System Unavailable" is displayed | Electronically controlled brake system disabled | Not stored | Illuminates |
| PCS Warning Light | Condition |
|---|---|
| Illuminates |
|
| Not illuminated | Other |
INITIAL CHECK
(a) An initial check is performed when the power switch is off for more than 2 seconds and then turned on (IG). The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds.
(b) If a malfunction is detected during the initial check, the PCS warning light in the combination meter assembly will illuminate and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.
CONSTANT CHECK
(a) The forward recognition camera constantly monitors the pre-collision system for malfunctions after the power switch is turned on (IG) and the initial check (approximately 3 seconds) has completed.
(b) If a malfunction is detected during the constant check, the PCS warning light in the combination meter assembly will blink and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Pre-Collision System
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) When a pre-collision system DTC is stored, the forward recognition camera stores the current vehicle (ECU or sensor) state as Freeze Frame Data. CHECK FREEZE FRAME DA
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the pre-collision system, a message will be displayed on the multi-information display and the pre-collision system will be disabled
SEE MORE:
No. 2 Clearance Warning Buzzer Circuit
DESCRIPTION This circuit consists of the No. 2 clearance warning buzzer and clearance warning ECU assembly. An ECU-excited type buzzer is used. The ECU operates the buzzers using a sound pattern that changes depending on the distance to the obstacle. WIRING DIAGRAM PROCEDURE 1. PERFORM ACTIVE
Components
COMPONENTS ILLUSTRATION *A w/o Power Back Door *B w/ Power Back Door *1 BACK DOOR FINISH COVER LH *2 BACK DOOR FINISH COVER RH *3 BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY SWITCH) *4 BACK DOOR LOCK COVER *5 BACK DOOR SIDE GARNISH LH *6 BACK DOOR SIDE GARNISH
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