HYBRID/TROUBLE SHOOTING
3–486
DTC: P0A1B (TCA5)
EN01H03ZZZ030602004024
DTC: P0A1B (TCA5) 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 (R/D converter NM stop abnormality, angle abnormality).
2.
DTC set condition
(1)
DTC detection condition
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Control power supply voltage is 8 V or more.
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Inverter start signal is ON.
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The number of motor revolutions is 100 r/min or more.
(2)
Judgement criteria
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The state in which no NM signal is present is detected continuously for 4 seconds within 0.2 second of the
abnormality timer counter (0.008 second of monitoring).
3.
Reset condition
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If the following condition continues for 4 seconds:
- The NM signal is detected within 0.2 second of the abnormality timer counter (0.008 second of monitoring).
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
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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.
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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
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Malfunction of inverter
