HYBRID/TROUBLE SHOOTING
3–482
DTC: P0A1B (TCA3)
EN01H03ZZZ030602004022
DTC: P0A1B (TCA3) Abnormality in inverter (ECU system)
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected an abnormality in the inverter (resolver REF signal cycle abnormality).
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
•
When one of the following conditions continues for 0.096 second:
- REF signal frequency is less than 8.7 kHz.
- REF signal frequency is more than 11.1 kHz.
3.
Reset condition
•
The state in which REF signal frequency is 8.7 kHz or more and 11.1 kHz or less 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.
•
Once stopped, the vehicle may become unable to drive.
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
