Toyota Highlander Service Manual: Lighting system

Lighting

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Precaution

1. PRECAUTION OF HEADLAMP BULB REPLACEMENT (a) If even a thin film of oil is left on the surface of the halogen lamp, the bulb may be damaged because the lamp will burn at a higher temperature. ( ...

More about Toyota Highlander:

Electronic circuit inspection procedure
1. BASIC INSPECTION (a) RESISTANCE MEASURING CONDITION OF ELECTRONIC PARTS  Unless stated, all resistance is measured at an ambient temperature of 20 C (68 F). Resistances measured may be outside the specifications if measured at high temperatures, i.e. immediately after the vehi ...