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P0820 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 Gear Lever Position Sensor tells the engine computer (PCM) what gear the transmission is in. This sensor is usually built into the Shift Lever. If the Gear Lever Position Sensor gives the PCM an implausible signal, code P0820 is set.
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OBD-II Code Powertrain Control Module (PCM) failure is defined as a Gear Lever X-Y Position Sensor Circuit
The Gear Lever Position Sensor tells the engine computer (PCM) what gear the transmission is in. This sensor is usually built into the Shift Lever. If the Gear Lever Position Sensor gives the PCM an implausible signal, code P0820 is set.