HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A02-719, P0A03-720
| DTC Code | DTC Name |
|---|---|
| P0A02-719 | Motor Electronics Coolant Temperature Sensor Circuit Low |
| P0A03-720 | Motor Electronics Coolant Temperature Sensor Circuit High |
DESCRIPTION
Refer to the description for DTC P0A01-726.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate |
|---|---|---|---|---|
| P0A02-719 | Motor Electronics Coolant Temperature Sensor Circuit Low | Short to ground in the EV coolant temperature sensor circuit (1 trip detection logic) |
Inverter with converter assembly | Master Warning Light: Comes on |
| P0A03-720 | Motor Electronics Coolant Temperature Sensor Circuit High | Open or short to +B in the EV coolant temperature sensor circuit (1 trip detection logic) |
Inverter with converter assembly | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P0A02-719 | Inverter Coolant Temperature |
| P0A03-720 |
CAUTION / NOTICE / HINT
Note
When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).
Tech Tips
After the repair, clear the DTCs. If "Inverter Coolant Water Temperature" does not show an abnormal value (110°C (230°F) or -50°C (-58°F)) when the power switch is turned on (IG), the condition is judged as normal.
(If a Low malfunction exists in the EV coolant temperature sensor wiring, 110°C (230°F) is displayed and if a High malfunction exists, -50°C (-58°F) is displayed.)
