P0220
DTC P0220
Circuit Description
The throttle position (TP) sensors 1 and 2 are located within the throttle body assembly. Each sensor has the following components:
- A 5-volt reference circuit
- A low reference circuit
- A signal circuit
This provides the powertrain control module (PCM) with a signal voltage proportional to throttle plate movement. TP sensor 1 signal voltage at closed throttle is near the 5-volt reference and decreases as the throttle plate is opened. TP sensor2 signal voltage at closed throttle is near the low reference and increases as the throttle plate is opened. If the PCM detects that the TP sensor 2 signal voltage is not within the predicted range, DTC P0220 sets.
Conditions for Running the DTC
- The ignition switch is in the crank or run position.
- DTC P0641 is not set.
- The ignition voltage is more than 5.23 volts.
Conditions for Setting the DTC
The PCM detects that the TP sensor 2 voltage is less than 0.31 volts or more than 4.7 volts.
Action Taken When the DTC Sets
- The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame and/or the Failure Records.
- The control module commands the TAC system to operate in the Reduced Engine Power mode.
- A message center or an indicator displays Reduced Engine Power.
- Under certain conditions the control module commands the engine OFF.
Conditions for Clearing the MIL/DTC
- The PCM will turn OFF the malfunction indicator lamp (MIL) during the third consecutive trip in which the diagnostic runs and passes.
- The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction. The DTC can be cleared by using a scan tool.
Step 1 - 6:
Step 7 - 16:
