Lexus NX: Operation Check
OPERATION CHECK
INSPECT ASC SYSTEM OPERATION
CAUTION:
Check for safety before performing any tests.
HINT:
When the drive mode changes to a mode other than NORMAL, SPORT or CUSTOMIZE*, the simulated engine sound stops.
*: Customize mode refers to when the following conditions are set on the multi-display customize setting screen. [Setup]→[Vehicle]→[Drive Mode Customization]→[Powertrain]→[Power] or [Normal]
(a) Idling sound inspection (except CUSTOMIZE mode)
(1) Turn the power switch on (READY).
(2) Turn the vehicle sound switch on.
(3) Select the SPORT drive mode.
(4) When either of the following conditions is met, check that the idling sound is output.
- After the power switch is turned on (READY), with the shift lever in P or N, the accelerator pedal is depressed to start the engine.
- The shift position is in D, S or R after starting off and the vehicle is driven at below 10 km/h (6 mph) when accelerating and at 9 km/h (6 mph) or less when decelerating.
HINT:
Check that the sound changes when the driving mode is changed from a mode other than ECO (non-operating condition), NORMAL (operating condition), or SPORT (operating condition).
(b) Idling sound inspection (CUSTOMIZE mode)
(1) Turn the power switch on (READY).
(2) Turn the vehicle sound switch on.
(3) Select the POWER customize mode using the multi-display assembly.
(4) When either of the following conditions is met, check that the idling sound is output.
- After the power switch is turned on (READY), with the shift lever in P or N, the accelerator pedal is depressed to start the engine.
- The shift position is in D, S or R after starting off and the vehicle is driven at below 10 km/h (6 mph) when accelerating and at 9 km/h (6 mph) or less when decelerating.
HINT:
Check that the sound changes when the driving mode is changed from a mode other than ECO (non-operating condition), NORMAL (operating condition) or POWER (operating condition).
(c) Driving sound inspection (except CUSTOMIZE mode)
(1) Turn the power switch on (READY).
(2) Turn the vehicle sound switch on.
(3) Select the NORMAL or SPORT drive mode.
(4) Move the shift lever to D, S or R and drive the vehicle at 10 km/h (6 mph) or more. According to the driving conditions (vehicle speed, accelerator pedal opening angle, etc.), check that simulated driving sounds resembling transmission up shifts and down shifts can be heard.
HINT:
Check that the sound changes when the driving mode is changed from a mode other than ECO (non-operating condition), NORMAL (operating condition) or SPORT (operating condition).
(d) Driving sound inspection (CUSTOMIZE mode)
(1) Turn the power switch on (READY).
(2) Turn the vehicle sound switch on.
(3) Select the NORMAL or POWER customize mode using the multi-display assembly.
(4) Move the shift lever to D, S or R and drive the vehicle at 10 km/h (6 mph) or more. According to the driving conditions (vehicle speed, accelerator pedal opening angle, etc.), check that simulated driving sounds resembling transmission up shifts and down shifts can be heard.
HINT:
Check that the sound changes when the driving mode is changed from a mode other than ECO (non-operating condition), NORMAL (operating condition) or POWER (operating condition).
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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 symptom are listed in order of
Terminals Of Ecu
TERMINALS OF ECU CHECK STEREO COMPONENT EQUALIZER ASSEMBLY (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Desc
Dtc Check / Clear
DTC CHECK / CLEAR DTC CHECK USING Techstream (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 / ASC
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Side Airbag Sensor RH (B1690,B1695)
DESCRIPTION The door side airbag sensor LH or RH consists of a lateral deceleration sensor, etc. If the airbag ECU assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated. DTC B1690 or B1695 is stored when a malfunction is detected in the doo
Front Airbag Sensor Lost Communication (LH) (B1617,B1618)
DESCRIPTION The front airbag sensor LH circuit consists of the airbag ECU assembly and front airbag sensor LH. The front airbag sensor LH detects impacts to the vehicle and sends signals to the airbag ECU assembly to determine if the airbag should be deployed. DTC B1617 or B1618 is stored when a mal
