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Old 05-18-2006, 12:15 PM   #1
WATRD
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Default Toyota (Tacoma) OBDII Drive Cycle?

Has anyone got a link to the exact sequence required to get all the sensors back online after a reset for a 2001 Tacoma?

The generic sequence is;

Start the engine. Idle the engine in drive for two and a half minutes with the A/C and rear defroster on.
Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle.
Hold at a steady speed of 55 mph for three minutes.
Decelerate (coast down) to 20 mph without braking or depressing the clutch.
Accelerate back to 55 to 60 mph at throttle.
Hold at a steady speed of 55 to 60 mph for five minutes.
Decelerate (coast down) to a stop without braking.

But my understanding is that Toyota has their own and I haven't been able to find it. I want to clear the "not run" status on a few straggler components.

Thanks!
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Old 05-18-2006, 01:01 PM   #2
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After much searching... here's the drive cycle requirements for our rigs to reset all the sensors to "Has Run" status, after clearing a check engine light. It is now a requirement in many places to have all the sensors reset, before they will do an emissions test on your rig.

http://www.watrd.com/work/TSB_EG003-02_(revised).pdf
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Old 05-18-2006, 01:09 PM   #3
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For example, with my V6, I would have to run procedures 4,5,10,11 to ensure that all monitors were ready for emissions testing. It might happen randomly over time that you do all the things required, in the order required, but that sheet has the list if you are in a hurry...
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Last edited by WATRD; 05-18-2006 at 01:34 PM.
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Old 10-07-2010, 11:37 PM   #4
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Thank you for this Rob .......also bump.
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