HEADUP Display Switch: Inspection: Inspection

INSPECT HEADUP DISPLAY SWITCH ASSEMBLY

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

Fig 1: Inspecting Headup Display Switch Assembly

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Standard Resistance

Tester Connection	Switch Condition	Specified Condition
1 (NVM) - 4 (E)	NAVI main switch is pressed	1782 to 1818 Ω
	NAVI main switch is not pressed	10 kΩ or higher
	HUD position up switch is pressed	811.8 to 828.2 Ω
	HUD position up switch is not pressed	10 kΩ or higher
	HUD position down switch is pressed	326.7 to 333.3 Ω
	HUD position down switch is not pressed	10 kΩ or higher
7 (CH) - 4 (E)	HUD main switch is pressed	1782 to 1818 Ω
	HUD main switch is not pressed	10 kΩ or higher
	HUD contrast up switch is pressed	811.8 to 828.2 Ω
	HUD contrast up switch is not pressed	10 kΩ or higher
	HUD contrast down switch is pressed	326.7 to 333.3 Ω
	HUD contrast down switch is not pressed	10 kΩ or higher

Apply battery voltage from the wire harness back side between the terminals of the switch, and check the lighting condition of the headup display switch assembly.

Tester Connection	Condition	Specified Condition
Battery positive (+) → 5 (ILL+) Battery negative (-) → 3 (ILL-)	Always	Headup display switch assembly illumination comes on

TEXT IN ILLUSTRATION

*1	Component without harness connected (Headup Display Switch Assembly)

If the value is not as specified, replace the headup display switch assembly. Refer to REMOVAL .