OBD-II code · Powertrain (generic)
P0814 Transmission Range Display Circuit
General electrical fault on the transmission range display circuit — drives the PRNDL indicator on the dashboard. With the input invalid the indicator may show the wrong gear range or stay blank.
Is it safe to drive with P0814?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen or shorted display wire
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Prndl Display, Wiring Harness
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.