Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20034 RUNNER 2WD V6-4.0L (1GR-FE)REPAIR AND DIAGNOSISLIGHTING AND HORNSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSSIDE CHECK LAMP OPERATION CHECK
2003 Toyota 4 Runner 2WD V6-4.0L (1GR-FE)
Side Check Lamp Operation Check
2003 Toyota 4 Runner 2WD V6-4.0L (1GR-FE)SECTION Side Check Lamp Operation Check
SIDE STEP LAMP OPERATION CHECK
a. Turn the ignition switch to OFF, close all the doors, and set the driver door in the lock condition.
b. Unlock the door and open front or rear doors, and check that the side step lamp comes on. Close the door and check that the side step lamp goes off within 15 seconds.
c. Under the conditions that the ignition switch is ON, one of the front or rear doors opens and the shift range is at any positions except for P positions, check that the side step lamp goes off when the vehicle speed exceeds 8 km/h (4.8 mph).
d. Then, check that the side step lamp comes on when the vehicle speed become 4 km/h (2.4 mph) or less.
a. Turn the ignition switch to OFF, close all the doors, and set the driver door in the lock condition.
b. Unlock the door and open front or rear doors, and check that the side step lamp comes on. Close the door and check that the side step lamp goes off within 15 seconds.
c. Under the conditions that the ignition switch is ON, one of the front or rear doors opens and the shift range is at any positions except for P positions, check that the side step lamp goes off when the vehicle speed exceeds 8 km/h (4.8 mph).
d. Then, check that the side step lamp comes on when the vehicle speed become 4 km/h (2.4 mph) or less.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.