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P1516 Diagnostic Trouble Code Discussion for November 2017

TAC Module Throttle Actuator Position Performance

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Trouble Ticket Help Requests for DTC P1516
Help Request Posted
2003 GMC Yukon SLE 5.3L Stall, MIL Lamp on, Reduced Power VIN: 1GKEK13Z63
P1516: TAC Module Throttle Actuator Position Performance. ... into Reduced Power Mode and check engine light comes on. Shut vehicle off and let sit for a minute or two starts up and runs fine. Check engine light does stay on for several ignition cycles. It is happening more frequently now that the weather has gotten ...
November 13, 2017