cgroom

where is the thing located? the part where i push into pins? is it the place where they hook up to read the codes?

if so, mine has 8 on both sides....

thank you

LexBrett

Hey Buddy, I know it is a little confusing. When get a chance I will look for the information for you!

cgroom

thank you...i do think i figured it out, but it didn't work.

the vsc lights blinked but when i started it, the check engine light was on and seconds later the other two lights came back on. not sure what to do now.

if anyone would call or text me, my number is 817 807 0106.

thanks for any and all help

FlopTop04

The C1336 should have been taken care of by the OBD2 jumper / reset procedure. Have you checked the codes after the jumper reset?

The C1201 code might be from the O2 sensor issue ( P0051 ). This code also causes the TRAC and VSC lights to come on.

Code P0051 might be the main culprit. P0051 indicates a problem with the heater circuit of the Bank 2 Sensor 1 O2 sensor. This is the sensor in the passenger side header, just before the catalytic converter. The harness is not exposed, so parking on the grass probably didn't cause it ( by getting the harness snagged by a branch or something ).

You could use a flash light to locate that O2 sensor and then verify that the harness is securely plugged in. Furter trouble shooting requires a Digital Multi Meter to check some voltages. Those O2 sensors do go bad. A high quality O2 sensor can be had for under $100. You might need a special scocket to reach, remove and replace the sensor.

Here is a link to the right / front ( upstream ) O2 sensor :
http://www.ebay.com/itm/89465-50130-DEALER-OVERSTOCK-DEEP-DISCOUNT-OVER-50-OFF-Lexus-Genuine-O2-Sensor-/161789851904?hash=item25ab6d3900&vxp=mtr
Here is a link to more info on P0051 : http://www.obd-codes.com/p0051

Bgw70

Picked this one up in another thread, I always used pins 4&14, this one calls for pins 3&13. Give it a shot.

The problem is solved by putting a jumper on 2 pins in the OBD-II connector under the dash. I think a lot of owners have this problem especially after being scanned for code. Some scanners are not built the same-- that seems to be the explanation. Anyhow, here it is, with a little bit of modification as it suits the SC430.

1. Turn off ignition.
2. Look for the OBD-II connector under the dash, it has a black plastic cover which can be pulled out.
3. Using a 4-inch wire, insert ends on two pins (holes) of the OBD-II connector. Which ones? The connector has two rows of holes with pins inside. The connector's shape is basically rectangle but there's a little wedge shape to it. Like this:

______
/---------\
/-----------\

I will call the narrower side of the connector the top row, and the wider side to be the lower row. Jump the following pins:
a) on the top row, counting from the left, where the first pin is 1, insert on pin number 3
b) on the bottom row, counting from the left, insert on pin
number 5.

4. Turn ON the ignition, do not start.
5. VSC and Check Engine lights turn ON. That's normal.
6. Wait for the VSC light to rapidly flash.
7. Turn OFF ignition.
8. Pull jumper wire out, cover the OBD-II connector.
9. Turn ignition ON, don't start, wait about 15 seconds to make sure everything has initialized.
10. Start car. Test drive. Did the VSC lights come back on?

mandyfig

Try to re-set again.

cgroom

thanks to everyone.
i replaced an o2 sensor, the check engine light stopped coming on.

i did the reset trick you guys taught me and all lights are now off.

thanks to all that helped me, this is a great forum