P0819moderate severityPowertrain
Up and Down Shift Switch to Transmission Range Correlation
on 2020 Ford F-150 5.0L V8 Coyote · RWD
What this code means
The PCM detected a mismatch between the up/down shift switch signals and the transmission range sensor. This indicates the two inputs do not agree with one another.
Symptoms
- Erratic shifting
- Manual mode not working
- Warning light on
Common causes
- Faulty shift switches
- Faulty transmission range sensor
- Damaged wiring or connector
- Faulty PCM/TCM
Diagnostic steps
- Scan for related codes
- Compare switch and range sensor data
- Inspect wiring and connectors
- Verify sensor calibration
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0005
Fuel Shutoff Valve A Control Circuit/Open