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Old 06-07-2013, 11:43 AM   #1
Jamus
 
Drives: '12 3dr Yaris L
Join Date: Sep 2007
Location: Southern WV
Posts: 38
I may have done that accidentally. I did have the key in the ignition to unlock the steering wheel, to get at the screws on the column plastic. I have tried unhooking the battery to reset the computer, do I need a scanner to reset it?
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Old 06-07-2013, 12:18 PM   #2
CTScott
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Quote:
Originally Posted by Jamus View Post
I may have done that accidentally. I did have the key in the ignition to unlock the steering wheel, to get at the screws on the column plastic. I have tried unhooking the battery to reset the computer, do I need a scanner to reset it?
No. You can read the codes and reset it using a piece of wire to jump the CG and TC pins indicated below together on the OBD connector.

VSC.jpg

To read the codes

1. Turn the ignition off
2. Jump the CG and TC pins and leave them connected
3. Turn the ignition on
4. Watch the blinking of the SLIP and ABS lights
5. When the system is operating correctly, each light will blink continuously in a pattern of 0.25 seconds on, then 0.25 seconds off

When one DTC is output, each lamp will output the same code at 4 second intervals. (For example, Code 21 would be output as 2 flashes, a 1.5-second pause, and then 1 flash)

When 2 or more DTCs are output, each lamp will output a different code at 2.5-second intervals, and when all codes have been output, there will be a 4-second pause and the sequence will repeat

When multiple codes are set, they are output in order starting with the lowest DTC number

6. Turn the ignition off
7. Remove the jumper




To reset the DTCs

1. Turn the ignition off
2. Jump the CG and TC pins and leave them connected
3. Turn the ignition on
4. Clear the DTCs stored in the ECU by depressing the brake pedal 8 times or more within 5 seconds
5. Check that the warning light indicates a normal system code
6. Turn the ignition off
7. Remove the jumper
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