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I made a bad call put throttle body in still didn’t fix it. So I rechecked and load tested both motor drive circuits from pcm light headlight. Has 5 volts and grounds at throttle body. App sensors read .8 and 1.65 key off not touching throttle they change with touching gas pedal. Any other checks I’m wanting to call a pcm.
Service info says the code sets for high amperage from the throttle, and that amperage is displayed in scan data, but the value freezes when the p2103 is set.
You could compare the actual throttle amperage with the scan data at the time of the fault.
Service info also says that throttle motor circuit should have 0v disconnected KOEO.
Check for shorts to power and ground.
Voltage could indicate a short to power or a faulty PCM.
That’s why I put a throttle body in it I unhooked throttle body and checked the motor control circuits and it was below the specified value of 1 volt. Next step put throttle body in. Didn’t fix it. I did amp clamp it the highest I got was 500 milliamperes for a split second before code sets
From what I read it was 7 amps or 10 amps for a respective threshold of time.
I probably would have put a throttle body on it too to be perfectly honest with you.
I think if the code sets right away, and the amperage is not actually to high and you're satisfied that there is not a short to power or ground on the motor circuit (or touching wires), then I agree that the code should not be setting and that the PCM is likely to blame.
Maybe the original throttle body pulled so much amperage at one point that it damaged the PCM.
