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Home >> Toyota >> 2017 >> Highlander LE Plus, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System (Exterior) - Diagnostic Codes & Circuit Tests - (Except Hybrid) >> Lighting System >> Circuit Tests >> Daytime Running Light Relay Circuit [11/2016 - ] >> Description

Daytime Running Light Relay Circuit [11/2016 - ]: Description

for LED Type DRL: 

The main body ECU (multiplex network body ECU) controls the daytime running lights (headlight assembly) via the semiconductor pwr integration ECU.

for Bulb Type DRL: 

The main body ECU (multiplex network body ECU) controls the daytime running lights (low-intensity high beam headlights) via the semiconductor pwr integration ECU.