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Safety Car
Joined: Jan 2001
Posts: 4,386
Likes: 689
From: Boise ID
DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
Refer to Cell 20: TP and APP Sensors for complete circuit details.
Circuit Description
The commanded throttle position, based on accelerator pedal position and possibly other limiting factors, is compared to the Actual throttle position. The 2 values should be within a calibrated range of each other. Both the PCM and the TAC module redundantly monitor the Commanded and Actual throttle position. This DTC sets if the TAC module detects the problem.
Refer to Cell 20: TP and APP Sensors for complete circuit details.
Circuit Description
The commanded throttle position, based on accelerator pedal position and possibly other limiting factors, is compared to the Actual throttle position. The 2 values should be within a calibrated range of each other. Both the PCM and the TAC module redundantly monitor the Commanded and Actual throttle position. This DTC sets if the TAC module detects the problem.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Based on 87SAM's report on the code, sort of sounds like your throttle position sensor has a glitch in it, so you might want to think about replacing it. Do some more homework first though.
