Repair 7

How to Disable the DRL on a 2004 Corolla

Many motor vehicle accidents occur because other drivers and pedestrians dont see other vehicles until its too late. The daytime running lamp system on a 2004 Toyota Corolla turns on the headlamps at a reduced brightness level whenever the engine is running in order to combat this problem. This system helps other drivers and pedestrians to see the vehicle, reducing the likelihood of accidents and other potentially dangerous situations. In order to service the daytime running lamp system and make certain repairs, the daytime running lamp relay must be disconnected from the engines wiring harness.

Instructions

1

Turn off the engine and apply the Corollas parking brake. Shine a work light under dashboard, near the upper-right pedal area.

2

Locate the daytime running lamp relay; it is mounted on the right side of the foot well area. It is attached to the right under-dashboard wall, adjacent to the gas pedal. It is a small, square black relay and is third in a row of relays, furthest from the firewall.

3

Lift the locking tab on the relays connector with a small flat-head screwdriver and remove the relays electrical connector.

4

Start the engine and confirm that the daytime running lamps do not turn on. When youre done with your testing or repair, reconnect the daytime running lamp relays electrical connector and confirm that the lamps operate properly.