OBD II Fault Code

  • OBD II P0A92

OBD-II Code Engine may not start is defined as a Hybrid Generator Performance

Toyota's Hybrid System uses two "Motor Generators" (MG1 and MG 2) to converter high voltage to mechanical energy (movement). The MG units function based off the magnetic field that is created internally. If the High Voltage control module detects a decrease in the magnetic field, it will store code P0A92.

Engine may not start Symptoms

  • Engine may not start
  • Vehicle may be immovable

Common Problems That Trigger the P0A92 Code

  • High voltage control module failure
  • Hybrid transaxle assembly failure
  • Internal engine failure
  • Wiring issue
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