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P1516 Diagnostic Trouble Code Discussion for October 2021

TAC Module Throttle Actuator Position Performance

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Trouble Ticket Help Requests for DTC P1516
Help Request Posted
2006 GMC Sierra 2500 HD SLE 6.0L Stall VIN: 1GTHK24U76
P1516: TAC Module Throttle Actuator Position Performance. We have repaired many of these P1516 problems by replacing the throttle body and the pigtail wiring, and cured 95% of the problem, but there are a very few that still have a very intermittent reduced power message and p1516 return. Cut the key off, restart...
October 12, 2021