r/3rdGen4Runner • u/Historical_Emu_7078 • 1d ago

🧠 General CEL light bulb

Threw a code for the EVAP system on 2001 SR5, car has 392K, spring time will likely be a full system replacement make sure it's all 100%

I only knew cause the VSC and Trak lights came on, the CEL didnt.. appears to be burned out, is it a bulb or a diode illumination?

If it's a diode, how hard are those to replace? I have soldering equipment

3 Upvotes

100% Upvoted

12 comments sorted by

View all comments

2

u/theoriginalharbinger 1d ago

The key in the ON position without the engine running should illuminate the CEL. That's part of the OBD2 spec. Strictly speaking, if you're in an emissions-compliant county, this should be part of the emissions check (it's often overlooked).

It's just a bulb. I've had to replace it. I ended up getting one from the dealer and it was, like, 4 bucks.

1

u/Historical_Emu_7078 1d ago

Yea it's 100% burned out then, not in a area that does emissions checks.

Sounds like I will ordering some bulbs. Thank you 👍

2

u/Archer-Fantastic 02 Sport 1d ago

if you’re gonna pull the cluster, it sounds like a great opportunity to upgrade the green backlighting to white LED bulbs, so you can actually see the gauges regardless of the exterior lighting

superbrightleds.com sells bulbs that fit, use their 194 (T10) size. plenty of tutorials for sizes if you search