P0A19: Motor Torque Sensor Circuit Low
What to do
Reduced power with this code stored is the module being cautious, not the motor failing. Have the wiring checked before any expensive part is discussed.
What this code means
The motor torque circuit reads at the bottom of its range — a short to ground or an open pulling the signal low.
A reading pinned at an electrical extreme is a circuit statement, not a torque statement: the motor is almost certainly delivering normal torque while the wire reporting it has failed. The module still reduces power, because it will not act on a torque figure it cannot trust. Wiring and connectors first, as across this family — see P0A17 for why the "sensor" itself is rarely a replaceable part.
Likely causes
Start here
- Wiring shorted to ground · moderate
- Open circuit in sensor wiring · moderate
- Corroded or loose connector · easy
Symptoms
Components involved
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
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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