P0781
PowertrainTransmission Shiftmoderate severity1-2 Shift Malfunction
What P0781 Means
A problem was detected during the 1-2 gear shift. The transmission may not shift properly from first to second gear.
Symptoms
- Delayed 1-2 shift
- Harsh or slipping shift
- Reduced acceleration
Common Causes
- Faulty 1-2 shift solenoid
- Low transmission fluid
- Dirty fluid or clogged valve body
- Internal clutch wear
Diagnostic Steps
- Check fluid level and condition
- Scan for related codes
- Test shift solenoid operation
- Inspect valve body and clutches
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Community Confirmed Fixes
No confirmed fixes yet for this code. Be the first to contribute!
Submit a FixFound a Fix for P0781?
Help other technicians by sharing what worked on your vehicle.
Submit Your Fix