MotoLogic P1516, P2101, P2119, P2176 User Manual
3/20/2021 DTC P1516, P2101, P2119, or P2176 (LUW, LWE) • 2014 Chevrolet Sonic • MotoLogic
https://www.motologic.com/car/2014_chevrolet_sonic_us_canada_100300579/article/8eb17ea87b2da1aee6bf399c5909593e?returnPath=%2Fcar%2F
…
DTC P1516, P2101, P2119, or P2176 (LUW, LWE)
Applies to:
1.8L (LUW, LWE)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P1516
Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
DTC P2101
Throttle Actuator Position Performance
DTC P2119
Throttle Closed Position Performance
DTC P2176
Minimum Throttle Position Not Learned
Diagnostic Fault Information
Circuit
Short to
Ground
Open/High
Resistance
Short to
Voltage
Signal
Performance
TAC Motor Control Closed
P1516, P2101,
P2176
P1516, P2101,
P2176
P1516, P2101,
P2176
P1516, P2101,
P2176
TAC Motor Control Open
P1516, P2101,
P2176
P1516, P2101,
P2176
P1516, P2101,
P2176
P1516, P2101,
P2176
Circuit/System Description
The Engine Control Module (ECM) controls the throttle valve by applying a varying voltage to the control circuits of
the throttle actuator control (TAC) motor. The ECM monitors the duty cycle that is required to actuate the throttle
valve. The ECM monitors the throttle position (TP) sensors 1 and 2 to determine the actual throttle valve position.
Conditions for Running the DTC
P1516
1/6
3/20/2021 DTC P1516, P2101, P2119, or P2176 (LUW, LWE) • 2014 Chevrolet Sonic • MotoLogic
https://www.motologic.com/car/2014_chevrolet_sonic_us_canada_100300579/article/8eb17ea87b2da1aee6bf399c5909593e?returnPath=%2Fcar%2F
…
DTC P1682 is not set.
The run/crank or powertrain relay voltage is greater than 6.41 V and reduced power is not active.
DTC P1516 runs continuously when the above conditions are met.
P2101
DTC P1682 is not set.
The run/crank or powertrain relay voltage is greater than 5.5 V and reduced power is not active.
The engine is running or the following conditions are met:
The engine is not running.
The ignition voltage is greater than 11 V.
The TAC system is not in the Battery Saver mode.
The ECM is commanding the throttle.
The ECM has learned the minimum throttle position.
DTC P2101 runs continuously when the above conditions are met.
P2119
The ignition is ON.
DTC P0121, P0122, P0123, P0222, P0223, P0697, P06A3, or P2135 is not set.
The run/crank or powertrain relay voltage is greater than 5.5 V and reduced power is not active.
DTC P2119 runs continuously when the above conditions are met.
P2176
The ignition is ON.
The run/crank or powertrain relay voltage is greater than 6.41 V and reduced power is not active.
The ECM enable the minimum throttle learn procedure.
DTC P2176 runs continuously when the above conditions are met.
Conditions for Setting the DTC
P1516
The ECM detects an unstable throttle position for greater than 1 s.
P2101
The ECM detects the actual throttle position does not match the predicted throttle position for greater than 1 s.
P2119
The ECM detects the throttle blade did not return to the default position when the TAC motor is de-energized for
greater than 1 s.
P2176
The ECM detects that both throttle position (TP) sensors were greater than a predetermined voltage during the
minimum throttle learn procedure for greater than 2 s.
Action Taken When the DTC Sets
DTCs P2101 and P2176 are Type A DTCs.
2/6
Loading...