P0819 code meaning
Up and Down Shift Switch to Transmission Range Correlation
What P0819 means
P0819 is the plausibility check between the tap-up and tap-down switches and the range sensor: a shift request may only appear in the manual gate or in drive. If a tap switch reports in P, R or N, or taps arrive without the manual gate being detected, the correlation is broken. GM's 2019 tables and Ford's 2012 SelectShift run exactly this check but assign the fault to the switch concerned as P0815 or P0816; no manufacturer with its own P0819 is documented. Manual shifting would be disabled while automatic operation stays normal, without the MIL. Causes are a sticking tap switch, a misadjusted range sensor or selector cable, or the selector wiring.
P0819 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0819
- Tap or manual mode not working
- Range display partly wrong
- No check engine lamp
Common causes of P0819
- Most likelyTap switch sticking or faulty
- PossibleRange sensor or selector sensor misadjusted or faulty
- PossibleSelector cable misadjusted
- PossibleSelector wiring or connectors
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Tap shift switchTransmission range sensorGear selectorTransmission control module
What each part of P0819 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 8 | Area: transmission. |
| 19 | The exact fault in that area. |
What to do next
- Note P0819 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0819
What does P0819 mean?
P0819 means "Up and Down Shift Switch to Transmission Range Correlation". P0819 is the plausibility check between the tap-up and tap-down switches and the range sensor: a shift request may only appear in the manual gate or in drive. It is a generic code, so it means the same on every make.
Is it safe to drive with P0819?
P0819 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will P0819 fail an emissions test?
P0819 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0819 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P0819 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.