While it may seem a bit trivial, your vehicle’s ECU needs to know that you have selected the right gear for the driving situation. If there is an intermittent problem with the sensors that help it to determine what gear has been selected, a P0823 DTC will save in the ECU memory.
How Serious is the Code?
In order to operate properly, your vehicle has to know that the correct gear has been selected with the shifter. If there’s an intermittent problem with the sensor data that tells it what gear has been selected, compared to the current driving situation, a P0823 diagnostic trouble code will be triggered. And it can impact driving performance if that ECU thinks that you have selected the wrong gear.
Symptoms of a P0823 include:
- Shifts are extremely harsh
- Transmission gets stuck in a gear
- Frayed/damaged wiring
- Broken and/or corroded connectors
- Misadjusted transmission range sensor
- Bad transmission range sensor
How to Diagnose the Code?
In order to determine what is causing a P0823 OBDII trouble code, your technician should first check the condition of the wiring and connectors going to the transmission range sensor. If everything looks good, and the sensor does not need to be adjusted, it should be tested to ensure that it works properly.
What Repairs Will Fix P0823?
- Repair or replace damaged wiring/connectors
- Adjust or replace transmission range sensor
- P0820 – Gear Lever X-Y Position Sensor Circuit
P0821 – Gear Lever X Position Circuit
P0822 – Gear Lever Y Position Circuit
P0824 – Gear Lever Y Position Circuit Intermittent