Lexus NX: Operation Check
OPERATION CHECK
VEHICLE PROXIMITY NOTIFICATION SYSTEM OPERATION CHECK
(a) System operation check (vehicle stopped)
(1) Apply the parking brake.
(2) Turn the power switch on (IG).
(3) With the brake pedal depressed, confirm that the vehicle proximity notification system does not operate (produce a sound) when the shift lever is moved from P to N.
(4) When the brake pedal is released, confirm that the vehicle proximity notification system operates for approximately 3 seconds (produces a sound).
(b) System operation check (vehicle being driven)
(1) Turn the power switch on (READY).
(2) Operate the EV drive mode switch and drive the vehicle using EV drive mode.
(3) When the shift lever is moved from P to D, confirm that the vehicle proximity notification system operates (produces a sound) when the vehicle is driven at speeds of 35 km/h (22 mph) or less using EV drive mode.
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
Terminals Of Ecu
TERMINALS OF ECU CHECK VEHICLE APPROACHING SPEAKER CONTROLLER (a) Disconnect the A80 vehicle approaching speaker controller connector. (b) Measure the voltage and resistance according to the value(s)
Dtc Check / Clear
DTC CHECK / CLEAR DTC CHECK (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 / Vehicle Proximity No
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Parts Location
PARTS LOCATION ILLUSTRATION *1 HEADUP DISPLAY SWITCH ASSEMBLY *2 METER MIRROR SUB-ASSEMBLY *3 FORWARD RECOGNITION CAMERA *4 NO. 2 ENGINE ROOM RELAY BLOCK - ECU-B NO.1 FUSE *5 ECM *6 COMBINATION METER ASSEMBLY *7 DLC3 *8 RADIO RECEIVER ASSEMBLY *9 MAIN BO
Seat Belt Buckle Switch (LH) (B1656)
DESCRIPTION The seat belt buckle switch LH circuit consists of the airbag ECU assembly and front seat inner belt assembly LH. DTC B1656 is stored when a malfunction is detected in the seat belt buckle switch LH circuit. DTC No. Detection Item DTC Detection Condition Trouble Area B1656
