Mitsubishi FUEL Manual page 234

13I-40
Code No. P0220 Accelerator pedal position sensor (1st
channel) system
Range of Check
D Accelerator pedal position sensor (2nd channel) is normal.
D Communication between the engine-ECU <M/T> or engine-A/T-ECU <A/T>
and the throttle valve controller is normal.
Set Conditions
D The output voltage of accelerator pedal position sensor (1st channel) is 0.2 V
or less for one second.
or
D The output voltage of accelerator pedal position sensor (2nd channel) is 2.5
V or less, and that of accelerator pedal position sensor (1st channel) is 4.5
V or more for one second
or
D The difference between accelerator pedal position sensor (1st channel) and
accelerator pedal position sensor (2nd channel) output voltages is 1.0 V or
more (i.e. the throttle opening angle changes slightly).
or
D The output voltage of accelerator pedal position sensor (1st channel) is 1.875
V or more for one second when the accelerator pedal position switch is
turned on.
GDI -
Troubleshooting
Probable cause
D Malfunction of accelerator pedal position sensor
(1st channel)
D Open or short circuit in the accelerator pedal
position sensor (1st channel) circuit or loose
connector contact
D Accelerator pedal position switch seized ON
D Malfunction of throttle valve controller
D Malfunction of engine-ECU <M/T>
D Malfunction of engine-A/T-ECU <A/T>