HYBRID CONTROL SYSTEM, Diagnostic DTC:P0AEF-275, P0AF0-274
| DTC Code | DTC Name |
|---|---|
| P0AEF-275 | Drive Motor Inverter Temperature Sensor "A" Circuit Low |
| P0AF0-274 | Drive Motor Inverter Temperature Sensor "A" Circuit High |
DESCRIPTION
-
The MG ECU, which is built into in the inverter with converter assembly, detects the temperature of the motor inverter using a temperature sensor built into the inverter with converter assembly. The inverter cooling system operates independently of the engine cooling system. The MG ECU uses signals from the motor inverter temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the MG ECU will limit inverter output to help prevent inverter overheating. The MG ECU also detects malfunctions in the motor inverter temperature sensor and its wiring.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0AEF-275 | Short to GND in the motor inverter temperature sensor circuit (1 trip detection logic) |
Inverter with converter assembly |
| P0AF0-274 | Open or short to +B in motor inverter temperature sensor circuit (1 trip detection logic) |
Inverter with converter assembly |
| DTC No. | Data List |
|---|---|
| P0AEF-275 | Inverter Temp-(MG2) |
| P0AF0-274 |
Tech Tips
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
-
Turn the power switch on (IG) and wait for 5 seconds or more.
INSPECTION PROCEDURE
