HYBRID/TROUBLE SHOOTING
3–217
DTC: P0AFD (TC6B)
EN01H03ZZZ030602003030
DTC: P0AFD (TC6B) Abnormality in low temperature of HV battery
INFORMATION
1.
Technical description
•
–
<Description of malfunction>
•
Detected the low temperature abnormality in the HV battery.
2.
DTC set condition
(1)
DTC detection condition
•
The starter key is set to the ON position.
•
The control power supply voltage is 10 V or more.
•
The engine intake air temperature sensor shows no abnormality.
•
The HV battery current sensor shows no abnormality.
•
The HV battery temperature sensor shows no abnormality.
•
The engine intake air temperature is -10
C {14
F} or more.
•
The engine speed remains at 600 r/min or more for 60 second or more.
•
The output of HV battery ECU start relay is ON.
•
The vehicle speed remains at 12.4 mph or more for 30 seconds or more.
•
The square sum of HV battery current for 1800 seconds is 200,000 A
2
or more.
(2)
Judgement criteria
•
The HV battery temperature remains less than -30
C {-22
F} for 10 seconds or more.
3.
Reset condition
•
The HV battery temperature remains at -30
C {-22
F} or more for 10 seconds or more.
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 idling stop function becomes inoperative.
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
•
Ice buildup on the HV battery
•
Malfunction of HV battery temperature sensor circuit
•
Malfunction of HV battery ECU
