ENGINE (J05E)/TROUBLESHOOTING
2–677
DTC: P0653
EN01H02127030602016111
P0653: ECU sensor power supply 2 failure (Out of range high)
INFORMATION
1.
Technical description
•
Power is supplied to the sensor supply 2 circuit.
(Accelerator sensor 1, common rail pressure sensor (sub), PTO accelerator sensor, DPR differential pressure sen-
sor, aftertreatment fuel injection line pressure sensor)
<Description of malfunction>
•
Excessively high voltage has been detected in the sensor power supply.
2.
DTC set condition
(1)
DTC detection condition
•
Starter key "ON".
•
Battery voltage is in the range of 10 V to 16 V.
Above conditions continue for at least 5 seconds.
(2)
Judgement criteria
•
The AC/DC converter input sensor has a power supply voltage no greater than 3.5 V for at least 3 seconds.
3.
Reset condition
•
Immediately after normal operation is restored.
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: OFF
•
SVS light: OFF
$XW (PC2S)
(E1)
X85
XZG
Z70
$XV
(PCR1)
(VC1)
(E2)
(PCR2)
(VC2)
Z72
XZH
(VC2)
(PCR2)
(E2)
(VC)
(PCR1)
(E1)
(PC1S)
XG2
EBJ
EBH
EBN
EBM
EBL
EBK
15mA
15mA
2mA
2mA
15mA
15mA
Common rail
pressure sensor
(VPA1)
YKF
YKE
XQ4
(E1)
(VCP1)
(VPA2)
(E2)
(VCP2)
XZL
YWJ
YWH
Z65
JE3
ZSQ
Z6T
JE4
JE5
5mA
5mA
20mA
20mA
20mA
20mA
(VC)
FFF
12mA
(VCC)
%8V
20mA
Accelerator
sensor
Engine ECU
(VCP2)
(EPA2)
(VPA2)
(VC)
(PEX)
(E2)
YWK
EB6
YWL
ECE
ECF
ECG
TYP 0.018A
TYP 0.001A
TYP 0.018A
+QG
+Q6
+QF
DPR differential
pressure sensor
PTO accelerator
sensor
Aftertreatment fuel
injection line
pressure sensor
(EP1)
(PEX)
(VCP1)
(VCPA)
(EPA)
(VPA)
SHTS021270300620