Mitsubishi FUEL Manual page 254

13I-60
Code No. P1225 Accelerator pedal position sensor (2nd
channel) system
Range of Check
D Accelerator pedal position sensor (1st 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 Output voltage of the accelerator pedal position sensor (2nd channel) is 0.2
V or less for one second
or
D Output voltage of the accelerator pedal position sensor (1st channel) is 2.5 V
or less, and output voltage of the accelerator pedal position sensor (2nd
channel) is 4.5 V or more for one second.
or
D Difference between the accelerator pedal position sensor (1st and 2nd
channels) output voltages exceeds 1.0 V (i.e. when the throttle valve opening
angle changes slightly).
MUT-II Data list
77 Accelerator pedal position sensor
(2nd channel) (Refer to P.13I-98,
DATA LIST REFERENCE
TABLE.)
NG
Check the accelerator pedal position
sensor (Refer to P.13I-109*.)
OK
Check the following connector:
C-172
OK
Measure at accelerator pedal position
sensor connector C-172.
D Disconnect the connector and
measure at the harness side.
(1) The resistance between terminal
7 and earth
OK: 2 W or less
(2) The voltage between terminal 8
and earth
(Ignition switch: ON)
OK: 4.8 - 5.2 V
OK
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GDI -
Troubleshooting
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to
Note for Intermittent Malfunctions.)
NG
Replace
NG
Repair
(1) NG
Check the following connectors:
C-81, C-160
Check the harness wire between
accelerator pedal position sensor
(2nd channel) and the throttle valve
controller.
Check the trouble symptoms.
(2) NG
Measure at throttle valve controller
connector C-160.
D Measure voltage at the throttle
valve controller connector
terminals.
D Ignition switch: ON
D The voltage between terminal 6
and earth
OK: 4.8 - 5.2 V
Check the following connector:
C-160
Check the harness wire between
accelerator pedal position sensor
(2nd channel) and the throttle valve
controller.
Check the trouble symptoms.
Probable cause
D Malfunction of accelerator pedal position sensor
(2nd channel)
D Open or short circuit in accelerator pedal position
sensor (2nd channel) circuit or loose connector
contact
D Malfunction of the throttle valve controller
D Malfunction of engine-ECU <M/T>
D Malfunction of engine-A/T-ECU <A/T>
NG
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
Repair
Repair
Replace the throttle valve controller.
Check the following connectors:
C-81, C-160
NG
OK
Repair
Check the harness wire between
accelerator pedal position sensor
(2nd channel) and the throttle valve
controller, and repair if necessary.
Repair
Repair
Replace the throttle valve controller.