P0A19 - OBD II Trouble Code

Our automotive experts have put together the following information about the P0A19 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0A19 code.

OBD II Fault Code

• OBD II P0A19

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

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 P0A19 will be stored. The Motor Torque Sensor is internal to the hybrid transaxle assembly.

High voltage system may not operate Symptoms

• High voltage system may not operate
• Vehicle will not operate

Common Problems That Trigger the P0A19 Code

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