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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Diagnostics) (1 Of 2) >> Description >> System (Transmission) >> A/T Control System >> Protection Function >> TCM High Temperature Protection Control
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TCM High Temperature Protection Control

Limit the accelerator opening and forcibly control the vehicle to the low torque driving when the electronic substrate in TCM reaches the high temperature.

Malfunction detection condition

TCM electronic substrate temperature

  • 145 deg. C (293 deg. F) and 120 seconds

    or

  • 150 deg. C (302 deg. F)

Control at malfunction

Accelerator opening: 0.5/8 or less

Normal return condition
  • TCM electronic substrate temperature: Less than 140 deg. C (284 deg. F)

    and

  • Vehicle speed: 5 km/h (3 MPH) or less

Vehicle behavior

Accelerator opening: output torque of approximately 0.5/8
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