
If you change your own oil, you may wonder, "How do I extinguish that annoying OIL SERVICE light?" It is a simple matter of sticking a piece of wire under your hood for 4 seconds. Well maybe it's not that simple, but that is the basic principle. No need to go to the dealer and pay them $75 for 4 seconds of work.
First, pop your hood and find the diagnostic data port. It is located on the side of the engine bay near the strut tower.

Unscrew the cap. You will see a big Pac-Man shaped hole and twenty little round holes. WTF is a Pac-Man? Never mind. We are only concerned with pin 7 and pin 19 (note: the words "pin" and "hole" are used interchangeably in this text). Refer to the picture below to find pins 7 and 19.

What we will be doing in this exercise is connecting pins 7 and 19 with a paperclip for four seconds. This will reset the oil service light. Simple, no?
Bend your paperclip it so it looks like this.

Well it doesn't have to look exactly like this, but you get the idea. Use pliers if you have to. We want those little loops at the end to maximize the contact with the conductors in the holes of the data port. If you can't make those little loops at the ends, that's okay. Just don't go running around with sharp objects.
Note: you probably will not be able to recover the original shape of the paperclip, so please don't use paperclips you can't afford to lose
Turn the ignition key to position II, but don't start the car. Get out of the car and go to the data port. Always connect pin 7 first. Once you've inserted one end into pin 7, insert the other end into pin 19 and hold it there for 4 seconds. Then remove the paperclip. Check the dash and the oil inspection lights should be reset. The reset occurs upon removal of the clip. DO NOT HOLD IT THERE FOR LONGER THAN 10 SECONDS or you may inadvertently reset your inspection I/II interval.
Pin Terminal Description
- TD - TD Signal
- Not occupied
- Not occupied
- Not occupied
- Not occupied
- Not occupied
- SI - Service Interval Reset
- Not occupied
- Not occupied
- Not occupied
- Not occupied
- 61 (D+) - Generator Charge Indicator
- Not occupied
- 30 Voltage - Hot at all times
- RXD - Diagnostic Data Link
- 15S Voltage - Ignition Switch in Run
- Not occupied
- PGSP - Programming Line
- 31 - Ground
- TXD - Diagnostic Data Link
This is a Copy/Paste from:
Here!
Ah yes, If you want to do this in a safer way, check out this:
Some tools that can ease the process...
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