HYBRID/TROUBLE SHOOTING
3–139
DTC: P0A78 (TC21)
EN01H03ZZZ030602003021
DTC: P0A78 (TC21) Abnormality in the inverter
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected an abnormality in the inverter or HV motor (critical abnormality of inverter).
2.
DTC set condition
(1)
DTC detection condition
•
CAN communication with the inverter is normal.
(2)
Judgement criteria
•
When critical abnormality information is received from the inverter through CAN communication
3.
Reset condition
•
No critical abnormality information is received from the inverter through CAN communication.
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: OFF
•
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 idling stop function becomes inoperative. (Note, however, that vehicles equipped with a starter will be started
with the starter.)
•
Idling stop may become unavailable.
•
The regeneration function stops, which may reduce the feeling of deceleration during deceleration.
6.
Pre-inspection work
•
Check the battery voltage to make sure that there is no abnormality.
7.
After-inspection work
•
Clear the recorded DTC.
•
Check that no DTC is detected after test-driving the vehicle.
8.
Estimated failure factors
•
Malfunction of inverter
