P0A24 code meaning
Generator Torque Sensor Circuit Low
Powertrain system Generic code P0Axx codes Check engine light
What P0A24 means
P0A24 is stored when the voltage from the generator torque sensor stays under its lower diagnostic limit for a calibrated time. Electrically this means the line is pulled toward ground, the sensor supply is missing or the signal wire is broken. The sensor measures torque on the shaft of the engine-driven generator; a Honda patent describes such a sensor inside a hollow generator or motor shaft. No manufacturer documents P0A24 publicly; CARB requires an approved generator monitoring plan. The upper limit is P0A25, implausible but valid readings are P0A23, short dropouts P0A26. Electric generation may be cut back.
P0A24 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 8 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0A24
- Hybrid system warning light
- Reduced charging and system power
Common causes of P0A24
- Most likelySignal line shorted to ground
- PossibleSensor supply voltage missing
- Less likelySensor electronics failed with output stuck low
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Generator torque sensorWiring harnessHybrid control module
What each part of P0A24 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| 24 | The exact fault in that area. |
What to do next
- Note P0A24 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0A24
What does P0A24 mean?
P0A24 means "Generator Torque Sensor Circuit Low". P0A24 is stored when the voltage from the generator torque sensor stays under its lower diagnostic limit for a calibrated time. It is a generic code, so it means the same on every make.
Is it safe to drive with P0A24?
Drive gently and only to a workshop. With P0A24 the car can go into limp mode (reduced power) to protect itself.
Will P0A24 fail an emissions test?
Yes, it can. P0A24 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0A24 to fix?
Difficulty: hard. A typical repair takes 1 to 8 hours of work. This is a job for a workshop.
Will P0A24 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.