P0A21 OBD-II: Motor Torque Sensor Circuit Intermittent

P0A21 Severity

Urgent

Should you fix P0A21 yourself?

Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.

Proper diagnosis will save you time and money on unnecessary repairs.

Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.

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P0A21 Summary Find a Repair Shop P0A21 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0A21?

The engine computer (PCM) monitors the amount of power the hybrid transaxle (motor/transmission assembly) produces. If the PCM does not receive a signal, code P0A21 will be stored. The Motor Torque Sensor is internal to the hybrid transaxle assembly.

OBD II Fault Code

OBD II P0A21

OBD-II Code High voltage system may not operate is defined as a Motor Torque Sensor Circuit Intermittent

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not operate

Common Problems That Trigger the P0A21 Code

Hybrid transaxle assembly failure
Powertrain Control Module (PCM) failure
Wiring issue

OBD Code Resources

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OBD II Fault Code

OBD II P0A21

OBD-II Code High voltage system may not operate is defined as a Motor Torque Sensor Circuit Intermittent

High voltage system may not operate Symptoms

High voltage system may not operate
Vehicle will not operate

Common Problems That Trigger the P0A21 Code

Hybrid transaxle assembly failure
Powertrain Control Module (PCM) failure
Wiring issue

P0A21 OBD-II: Motor Torque Sensor Circuit Intermittent

Should you fix P0A21 yourself?

What causes OBD-II fault code P0A21?

Need a P0A21 diagnosis? Trust our experts.

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0A21 Code

OBD Code Resources

Ask our experts about P0A21.

Other OBD-II Codes

OBD II Fault Code

High voltage system may not operate Symptoms

Common Problems That Trigger the P0A21 Code