HYBRID/TROUBLE SHOOTING
3–496
DTC: P0A1B (TCAA)
EN01H03ZZZ030602004029
DTC: P0A1B (TCAA) Abnormality in inverter (ECU system)
INFORMATION
1.
Technical description
•
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<Description of malfunction>
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Detected an abnormality in the inverter (short circuit abnormality in the main circuit element).
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
•
Immediately when one of the following conditions is met:
- Inverter short-circuit (without phase judgment) is confirmed.
- Inverter short-circuit (with phase judgment) is confirmed.
3.
Reset condition
•
Immediately when the following conditions are met:
- When the abnormality is not confirmed, inverter short-circuit (without phase judgment) is not confirmed.
- When the abnormality is not confirmed, inverter short-circuit (with phase judgment) is not confirmed.
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)>
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<Symptoms on the vehicle due to malfunction>
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The engine may become unable to start. (Note, however, that vehicles equipped with a starter will be started with
the starter.)
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Idling stop is not available.
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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
