mcviooue

I started my 2000 Corvette this morning and the Engine light and ABS/Trac Light light was on. I check the codes , there was PCM-1571 HC, it happens last year for a few days). I ride the car for 5 minutes. Stop it and check the codes again (PCM-1571 HC was there). I reset it, the code was gone and the warning lights was gone also. I drove the car 20 minutes and the warning light never appeared. Is it a big problem?
Thanks
Mc

dgrant3830

P1571 ASR Desired Torque

I don't have my C5 manuals any more so I can't point you in the correct direction for this but this will give you a TTT for your post.

Goody

From my 2001 manual:
The EBCM and the PCM simultaneously control the traction control. The PCM reduces the amount of torque supplied to the drive wheels by retarding spark timing and selectively turning off fuel injectors. The EBCM actively applies the brakes to the front wheels in order to reduce torque.

There is alot more written after that but you get the point.....

CONDITIONS FOR SETTING THE DTC:
P1571
One of the following conditions exists:
1. The PCM detects that requested torque signal is out of the valid range.
2. The PCM does not receive the requested torque signal.


Best case scenario is a loose wire, bad ground or other minor issue needing some attention. Worst case is new EBCM or PCM. I highly doubt it is a PCM issue, not impossible but highly unlikely.