HYBRID/TROUBLE SHOOTING
3–125
DTC: P0A07 (TC7E)
EN01H03ZZZ030602003017
DTC: P0A07 (TC7E) HV water pump drive signal High abnormality
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected a disconnection or power supply (positive side) short circuit in the HV water pump drive signal circuit.
2.
DTC set condition
(1)
DTC detection condition
<Condition 1>
•
The starter key is set to the ON position.
•
The control power supply voltage is 8 V or more.
•
HV ECU runs within 0.5 second.
<Condition 2>
•
The starter key is set to the ON position.
•
The control power supply voltage is 10 V or more.
•
The requested drive duty of HV water pump is above 0%.
•
The output of inverter start relay is ON.
(2)
Judgement criteria
•
When one of the following conditions is met:
<Condition 1>
- Input signal for monitoring HV water pump drive signal remains above 4.6 V for 0.1 second or more.
<Condition 2>
The following conditions are met continuously for 0.5 second or more:
- Input signal for monitoring HV water pump drive signal is 0 Hz.
- The condition that input signal for monitoring HV water pump drive signal is above 4.6 V.
HV ECU
Inverter
starter relay
PCI_B_2 20
F
F
F
M
F
L
L
L
X
L
I
H
2
2
5
1
3
3
3
4
1
27
76
I
43
Inverter
coolant pump
SHTS03ZZZ0300087
