Error code
OBD2 P2784
OBD2P2784
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Input/Turbine Speed Sensor 'A'/'B' Correlation.
Severity
moderateCan be driven but may experience shifting problems and reduced fuel efficiency.
Summary
P2784 indicates an issue with the correlation between two input/turbine speed sensors in the transmission, specifically sensor A/8.
Common Causes
- Wiring issues related to the transmission input shaft speed sensor or turbine shaft speed (TSS) sensor
Fixes
- Inspect and repair any damaged wiring or connectors related to the transmission input shaft speed sensor.
FAQ
What does P2784 mean?
P2784 indicates a problem with the correlation between two speed sensors in the transmission, which can affect shifting and fuel efficiency.
How do I fix P2784?
Inspect and repair any damaged wiring or connectors related to the transmission input shaft speed sensor. If necessary, replace faulty components.
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