HYBRID/TROUBLE SHOOTING
3–509
DTC: P0A1B (TCBE)
EN01H03ZZZ030602004033
DTC: P0A1B (TCBE) Abnormality in inverter (ECU system)
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected an abnormality in the inverter (current sensor power supply (N side) voltage 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 0.06 second:
- Current sensor power supply (N side) voltage is less than -7.2 V.
- Current sensor power supply (N side) voltage is more than -2.82 V.
3.
Reset condition
•
The state in which current sensor power supply (N side) voltage is -7.2 V or more and -2.82 V 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
