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DTC P0122, P0123 APP SENSOR
EC-1563
[YD (WITHOUT EURO-OBD)]
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EC
DTC P0122, P0123 APP SENSOR PFP:18002
Description BBS00298
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
CONSULT-II Reference Value in Data Monitor Mode BBS00299
Specification data are reference values.
*: This signal is converted by ECM internally. Thus, this differs from ECM terminals voltage.
On Board Diagnosis Logic BBS0029A
The MI will not light up for these self-diagnoses.
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0642 or P0643, first perform trouble diagnosis for DTC
P0642 or P0643. Refer to EC-1686, "
DTC P0642, P0643 SENSOR POWER SUPPLY" .
DTC Confirmation Procedure BBS0029B
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go to EC-1567, "
Diagnostic Procedure" .
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL POS SEN*
● Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released 0.5 - 1.0V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2*
● Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released 0.15 - 0.6V
Accelerator pedal: Fully depressed 1.95 - 2.4V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122
0122
Accelerator pedal position
sensor 1 circuit low input
An excessively low voltage from the APP sensor
1 is sent to ECM.
● Harness or connectors
(The APP sensor 1 circuit is open or
shorted.)
● Accelerator pedal position sensor
(Accelerator pedal position sensor 1)
P0123
0123
Accelerator pedal position
sensor 1 circuit high input
An excessively high voltage from the APP sensor
1 is sent to ECM.
SEF817Y
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