P0AED: Drive Motor Inverter Temperature Sensor A Circuit
What to do
Cautious power in warm weather with this stored is the module protecting what it can no longer watch. Wiring first — the sensor itself is inverter-internal and the expensive conclusion.
What this code means
The sensor measuring the inverter's own internal temperature has failed its circuit checks — the instrument behind the over-temperature verdicts at P0A3C, mounted on the power stage itself rather than in the coolant.
That placement is the distinction worth knowing: the coolant sensor at P0A00 reads the loop, this one reads the silicon, and the gap between them is how the module knows the loop is actually carrying heat away. Losing it costs the inverter its overheat protection at the exact point protection matters, so the module derates conservatively — cautious power on warm days from a purely electrical fault.
The sensor is internal to the inverter assembly; its external wiring is the reachable diagnosis, per the block's standing pattern.
Likely causes
Start here
- Open circuit in sensor wiring · moderate
- Corroded or loose connector · easy
Less common
- Faulty power inverter · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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