Lexus NX manuals

Lexus NX: Inspection

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Headlight Dimmer Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY

(a) Inspect the light control switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition
*1: w/ Light Control Switch Off Position

*2: w/ Light control switch DRL OFF Position

18 (T) - 15 (EL)

Light control switch off*1

Light control switch DRL OFF*2

10 kΩ or higher

20 (A) - 15 (EL)

19 (H) - 15 (EL)

20 (A) - 15 (EL)

Light control switch AUTO position

Below 1 Ω

18 (T) - 15 (EL)

Light control switch tail position

Below 1 Ω

18 (T) - 15 (EL)

Light control switch head position

Below 1 Ω

19 (H) - 15 (EL)

HINT:

If the result is not as specified, replace the headlight dimmer switch assembly.

*a

Component without harness connected

(Headlight Dimmer Switch Assembly)

(b) Inspect the headlight dimmer switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

17 (HF) - 15 (EL)

Headlight dimmer switch flash position

Below 1 Ω

14 (HU) - 15 (EL)

14 (HU) - 15 (EL)

Headlight dimmer switch high position

Below 1 Ω

HINT:

If the result is not as specified, replace the headlight dimmer switch assembly.

*a

Component without harness connected

(Headlight Dimmer Switch Assembly)

(c) Inspect the turn signal light switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

12 (TR) - 15 (EL)

Turn signal switch neutral position

10 kΩ or higher

11 (TL) - 15 (EL)

12 (TR) - 15 (EL)

Turn signal switch right turn position

(self cancel condition)

Below 1 Ω

12 (TR) - 15 (EL)

Turn signal switch right turn position

(cancel ratchet operation condition)

Below 1 Ω

12 (TR) - 13 (CR)

13 (CR) - 15 (EL)

11 (TL) - 15 (EL)

Turn signal switch left turn position

(self cancel condition)

Below 1 Ω

11 (TL) - 15 (EL)

Turn signal switch in left turn position

(cancel ratchet operation condition)

Below 1 Ω

11 (TL) - 13 (CR)

13 (CR) - 15 (EL)

HINT:

  • If the result is not as specified, replace the headlight dimmer switch assembly.
  • The self cancel condition indicates when the turn signal switch returns to the neutral position when releasing your hand from the switch (switch is operated within 7°).
  • The cancel ratchet operation condition indicates the condition when the turn signal switch does not return to the neutral position even when releasing your hand (switch operation is 12°).

*a

Component without harness connected

(Headlight Dimmer Switch Assembly)

(d) Inspect the front fog light switch.

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

9 (BFG) - 8 (LFG)

Front fog light switch off

10 kΩ or higher

9 (BFG) - 8 (LFG)

Front fog light switch on

Below 1 Ω

HINT:

If the result is not as specified, replace the headlight dimmer switch assembly.

*a

Component without harness connected

(Headlight Dimmer Switch Assembly)

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