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P07AA Severity
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.
The Hybrid Control Module monitors the transmission clutch for proper operation. If the Control Module detects the clutch is not activating as commanded, code P07AA will be set. The hybrid control module may also place the vehicle in "limp home", limiting available engine/transmission performance to prevent additional damage.
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OBD-II Code Transmission may not shift properly is defined as a Transmission Friction Element "E" Performance/Stuck Off
The Hybrid Control Module monitors the transmission clutch for proper operation. If the Control Module detects the clutch is not activating as commanded, code P07AA will be set. The hybrid control module may also place the vehicle in "limp home", limiting available engine/transmission performance to prevent additional damage.