P2107
DTC P2107
Circuit Description
The engine control module (ECM) controls the throttle valve by applying a varying voltage to the throttle actuator control motor. The ECM monitors the actual throttle valve position using throttle position (TP) sensor 1 and 2. The ECM amplifies the TP sensor 1 signal in order to obtain a more accurate signal. The ECM monitors the TP sensor 1 amplification output whenever the ignition is ON and a closed throttle test is performed. If the ECM detects the internal TP sensor 1 amplification output does not correlate with the TP sensor 1 signal voltage, this DTC sets.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P2107 Throttle Actuator Control (TAC) Module Internal Circuit
Conditions for Running the DTC
* The vehicle speed is 0 km/h (0 mph).
* The engine speed is less than 40 RPM.
* The engine coolant temperature (ECT) is 5-85°C (41-185°F).
* The intake air temperature (IAT) is 5-60°C (41-140°F).
* The ignition 1 voltage is more than 10 volts.
* The accelerator pedal position (APP) is less than 15 percent.
* The ECM is performing the closed throttle test with the ignition ON and the engine OFF.
* DTC P2107 runs once the above conditions are met during the throttle actuator control system initialization.
Conditions for Setting the DTC
The ECM detects the internal TP sensor 1 amplification output does not correlate with the TP sensor 1 signal voltage for more than 4 seconds.
Action Taken When the DTC Sets
* The control module stores the DTC information into memory when the diagnostic runs and fails.
* The malfunction indicator lamp (MIL) will not illuminate.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records.
* The driver information center, if equipped, may display a message.
Conditions for Clearing the DTC
* A current DTC Last Test Failed clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
* Clear the DTC with a scan tool.
Test
