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DTC P0642, P0643 SENSOR POWER SUPPLY
EC-1307
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0642, P0643 SENSOR POWER SUPPLY PFP:18002
On Board Diagnosis Logic BBS00233
DTC Confirmation Procedure BBS00234
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-1310, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0642
0642
Sensor power supply cir-
cuit low
ECM detects a voltage of power source for sen-
sor is excessively low.
● Harness or connectors
(The APP sensor 1 power supply cir-
cuit is shorted.)
(Crankshaft position sensor circuit is
shorted.)
● Accelerator pedal position sensor
(Accelerator pedal position sensor 1)
● Crankshaft position sensor
P0643
0643
Sensor power supply cir-
cuit high
ECM detects a voltage of power source for Sen-
sor is excessively high.
SEF817Y
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