Lexus NX: On-vehicle Inspection

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Stop Light Switch / On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT STOP LIGHT SWITCH ASSEMBLY

(a) Disconnect the stop light switch assembly connector.

*a	Front view of wire harness connector (to Stop Light Switch Assembly)

(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A1-1 (B) - A1-3 (GND)	Always	11 to 14 V
A1-5 (B) - A1-3 (GND)	Always	11 to 14 V

Standard Resistance:

Tester Connection	Condition	Specified Condition
A1-3 (GND) - Body ground	Always	Below 1 Ω

If the result is not as specified, repair or replace the wire harness or connector.

(d) w/o Dynamic Radar Cruise Control System:

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A1-2 (L) - A1-3 (GND)	Brake pedal not depressed	0 to 1.5 V
A1-2 (L) - A1-3 (GND)	Brake pedal depressed	7.5 to 14 V
A1-4 (L) - A1-3 (GND)	Brake pedal not depressed	7.5 to 14 V
A1-4 (L) - A1-3 (GND)	Brake pedal depressed	0 to 1.5 V

If the result is not as specified, replace the stop light switch assembly.

*a	Component with harness connected (Stop Light Switch Assembly)

(e) w/ Dynamic Radar Cruise Control System:

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A1-2 (L) - A1-3 (GND)	Power switch off, brake pedal not depressed	0 to 1.5 V
A1-2 (L) - A1-3 (GND)	Power switch off, brake pedal depressed	7.5 to 14 V
A1-4 (L) - A1-3 (GND)	Power switch on (IG), brake pedal not depressed	7.5 to 14 V
A1-4 (L) - A1-3 (GND)	Power switch on (IG), brake pedal depressed	0 to 1.5 V

If the result is not as specified, replace the stop light switch assembly.

*a	Component with harness connected (Stop Light Switch Assembly)

SEE MORE:

Removal

REMOVAL PROCEDURE 1. REMOVE CONSOLE BOX ASSEMBLY Click here 2. REMOVE DOOR SCUFF PLATE ASSEMBLY LH Click here 3. REMOVE COWL SIDE TRIM BOARD LH Click here 4. DISCONNECT FRONT FLOOR CARPET ASSEMBLY (a) Using a clip remover, remove the clip. *1 Hook *2 Fastener

Precaution

PRECAUTION NOTICE: When disassembling the headlight assembly, use static electricity countermeasures SST (desktop antistatic mat set) and observe all precautions to prevent damage to the system by electrostatic discharge (ESD). STATIC ELECTRICITY COUNTERMEASURES SST SST:Desktop antistatic mat set (0

Lexus NX: On-vehicle Inspection

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Removal

Installation

Mirror (ext)

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Removal

Precaution