TorqueMech OBD Code Guide
P0782 - 2-3 Shift Malfunction
The transmission detected a problem with the 2-3 shift event.
Code first. Confirm symptoms and checks before pricing parts.
Read code pattern
Check likely system
Estimate after confirmation
Common Next Steps
Turn the code into the next check.
Smoke test EVAP system
Use smoke testing when the leak source is not obvious.
Verify purge sealing
Check purge command and sealing before replacing the valve.
Check vent operation
Command the vent valve and inspect canister-side blockage or contamination.
Code Overview
The transmission detected a problem with the 2-3 shift event.
Common Causes
- Transmission sensor, solenoid, or switch fault
- Damaged wiring or connector
- Internal transmission or control-module issue
Diagnostic Steps
- Check transmission fluid condition and supporting codes
- Inspect the related connector and harness
- Compare commanded operation to live scan data if supported
Related OBD Codes
Browse nearby codes when systems overlap.
Next Steps
Move from code to checks, then estimate.