Error code

OBD2 P0815

OBD2P0815
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Upshift Switch Circuit.

Severity

moderateCan drive but shifting may be delayed or erratic.

Summary

P0815 indicates an issue with the upshift switch circuit, which is part of the transmission control system.

Common Causes

  • Poor wiring connection
  • Faulty upshift switch
  • ECM/PCM or TCM malfunction

Fixes

  • Repair or replace the faulty upshift switch and related wiring.

FAQ

What does P0815 mean?

P0815 indicates a malfunction in the circuit of the upshift switch, which is part of your transmission control system.

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.