P0220
DTC P0220
CIRCUIT DESCRIPTION
The throttle body assembly contains the following components:
- The throttle blade
- The throttle actuator motor
- The throttle position (TP) sensor 1 and 2
- The throttle actuator control (TAC) module
The TAC system monitors the throttle position with 2 sensors. If the powertrain control module (PCM) receives a message from the TAC module that indicates TP sensor 2 voltage is outside a predetermined range, DTC P0220 will set.
DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC P0220 Throttle Position (TP) Sensor 2 Circuit
CONDITIONS FOR RUNNING THE DTC
- DTCs P0606, P2108, U0107 are not set.
- The ignition switch is in the crank or the run position.
- The ignition voltage is more than 5.23 volts.
- The communications between the TAC module and the PCM must be valid.
CONDITIONS FOR SETTING THE DTC
- The TP sensor 2 voltage is less than 0.282 volt or more than 4.6 volts. OR
- The PCM learns a minimum throttle position of more than 0.813 volt. OR
- The TP sensor reference voltage is less than 0.5 volt.
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 control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- 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 emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.
TEST
