Error code
OBD2 P2781
OBD2P2781
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Downshift Switch Circuit High.
Severity
moderateCan drive but may experience shifting issues.
Summary
P2781 indicates an issue with the downshift switch circuit in the transmission gear selection system, specifically that the voltage is too high.
Common Causes
- Wiring short to positive
Fixes
- Replace the transmission gear selection switch.
FAQ
What does P2781 mean?
P2781 indicates a high voltage issue in the downshift switch circuit of the transmission gear selection system.
How do I fix P2781?
The most common solution is to replace the faulty transmission gear selection switch.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2700Transmission Friction Element 'A' Apply Time Range/Performance
- P2701Transmission Friction Element 'B' Apply Time Range/Performance
- P2702Transmission Friction Element 'C' Apply Time Range/Performance
- P2703Transmission Friction Element 'D' Apply Time Range/Performance
- P2704Transmission Friction Element 'E' Apply Time Range/Performance
- P2705Transmission Friction Element 'F' Apply Time Range/Performance
- P2706Shift Solenoid 'F'
- P2707Shift Solenoid 'F' Performance or Stuck Off
- P2708Shift Solenoid 'F' Stuck On
- P2709Shift Solenoid 'F' Electrical
- P2710Shift Solenoid 'F' Intermittent
- P2711Unexpected Mechanical Gear Disengagement