HYBRID/TROUBLE SHOOTING
3–227
DTC: P0C73 (TC80)
EN01H03ZZZ030602003032
DTC: P0C73 (TC80) Abnormality in HV water pump function
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected an abnormality in the HV water pump function.
2.
DTC set condition
(1)
DTC detection condition
•
The starter key is set to the ON position.
•
The control supply voltage is 10 V or more.
•
The drive duty of HV water pump is 61% or less.
•
The drive duty of HV water pump is 40% or more.
•
The output of inverter start relay is ON.
•
The vehicle speed remains at 12.4 mph for 30 seconds or more.
•
The engine intake air temperature sensor shows no abnormality.
•
The engine intake air temperature is -10
C {-14
F} or more.
•
The HV system coolant temperature is -20
C {-4
F} or more.
HV
ECU
Inverter
starter relay
PCI_B_2 20A
F
F
F
M
F
L
X
L
L
L
I
H
2
2
5
1
3
3
3
4
1
27
76
I
43
Inverter
coolant pump
SHTS03ZZZ0300150