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EC-1388
[YD (WITHOUT EURO-OBD)]
DTC P0642, P0643 SENSOR POWER SUPPLY
On Board Diagnosis Logic EBS0122O
The MI will not light up for these self-diagnoses.
DTC Confirmation Procedure EBS0122P
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 1st trip DTC is detected, go to EC-1390, "
Diagnostic Proce-
dure" .
91 G
Accelerator pedal position
sensor 2
[Ignition switch ON]
● Engine stopped
● Accelerator pedal: Fully released
0.4 - 0.7V
[Ignition switch ON]
● Engine stopped
● Accelerator pedal: Fully depressed
2.2 - 2.7V
92 Y
Accelerator pedal position
sensor 2 ground
[Ignition switch ON] Approximately 0.3V
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0642
Accelerator pedal position
sensor 1 power supply cir-
cuit low
ECM detects a voltage of power source for the
APP sensor 1 is excessively low.
● Harness or connectors
(The APP sensor 1 power supply cir-
cuit is open or shorted.)
● Accelerator pedal position sensor
(Accelerator pedal position sensor 1)
P0643
Accelerator pedal position
sensor 1 power supply cir-
cuit high
ECM detects a voltage of power source for the
APP sensor 1 is excessively high.
SEF817Y
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