In this video we use the Autel DS708 to relearn the throttle body on a GMC Yukon with a 5.3L engine with very high idle speed.
The throttle body was replaced because it was sporting a TPS DTC P0122.
As we see that the actual throttle plate position was at 24% causing high RPM at idle, while the desired plate position was 13%.
The throttle body was replaced with what looked like a known good used one.
Besides resetting the idle on this truck, I'm showing the capabilities of this little scan-tool which has given me very great results so far. Some of you asked me about this tool so I will share short clips on it capabilities.
For more videos like this one or thransmission repair videos please click the subscribe to go to my channel, you will find them there.
Thank you for watchin.

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