HYBRID/TROUBLE SHOOTING
3–593
DTC: P0A3F (TCB7)
EN01H03ZZZ030602004045
DTC: P0A3F (TCB7) Short-circuit abnormality between resolver phases
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected the phase-to-phase short circuit in the resolver (position detector).
2.
DTC set condition
(1)
DTC detection condition
•
Control power supply voltage is 8 V or more.
•
Inverter start signal is ON.
(2)
Judgement criteria
•
Insulation resistance drop signal = Lo is detected continuously for 0.1 second.
3.
Reset condition
•
Insulation resistance drop signal = High is detected continuously for 0.2 second.
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
•
HV warning light: ON
5.
Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe)>
•
–
<Symptoms on the vehicle due to malfunction>
•
The engine may become unable to start. (Note, however, that vehicles equipped with a starter will be started with
the starter.)
•
Idling stop is not available.
•
The regeneration function stops, reducing the feeling of deceleration during deceleration.
6.
Pre-inspection work
•
Check the battery voltage to make sure that there is no abnormality.
Inverter
Resolver
23
R1
R2
S1
S2
S3
S4
SLD3
D
24
D
12
D
D
D
D
D
1
Y
2
Y
5
14
13
15
6
10
11
27
9
Y
Y
Y
Y
Y
SHTS03ZZZ0300385
