HYBRID/TROUBLE SHOOTING
3–133
DTC: P0A1D (TC12)
EN01H03ZZZ030602003019
DTC: P0A1D (TC12) Abnormality in HV ECU function
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
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Detected the abnormality in the CAN communication circuit in the HV ECU. (Control CAN register stuck)
2.
DTC set condition
(1)
DTC detection condition
•
The starter key is set to the ON position.
•
HV ECU runs within 0.5 second.
(2)
Judgement criteria
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When an abnormality occurs in reading or writing of the control CAN controller ID/message register
3.
Reset condition
•
When reading and writing of the control CAN controller ID/message register are normally executed
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
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Diag lamp: 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 idling stop function becomes inoperative.
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The regeneration function stops, which may reduce the feeling of deceleration during deceleration.
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The CHG, AST, ECO, and SOC lamp may go off.
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 HV ECU
