Diesel Data: Automotive Repair

DRL Relay Circuit

DRL RELAY CIRCUIT

CIRCUIT DESCRIPTION




The multiplex network body ECU controls DRL No.2, No.3 and No.4 relays.

The headlamp (High) is connected in serial when the daytime running light system operates.




The headlamp (High) is connected in parallel when the HI BEAM or FLASH operates.

Wiring Diagram:






Step 1:




Step 2:




Step 3:




Step 4:




Step 5:




Step 6:




Step 7:




Step 7 Continued:




INSPECTION PROCEDURE