P07D2
Transmission Mode Switch E Circuit Low
Generic OBD-II
Common symptoms
What you'll notice
- Check for loose or faulty wiring connections to the transmission mode switch
- Inspect and clean the transmission mode switch
- Replace the transmission mode switch if necessary
- Check and test related components such as the transmission range sensor to ensure proper functionality
Common causes
Most likely first
- Faulty transmission mode switch
- Loose or damaged wiring or connectors related to the transmission mode switch
- Malfunctioning transmission control module (TCM)
- Low transmission fluid level or contaminated transmission fluid
- Damaged or worn out clutch plates in the transmission system
How to diagnose & fix
Work through it in order
- The engine may not start or may have difficulty starting.
- The transmission may not shift smoothly or may have trouble shifting gears.
- The vehicle may experience sudden loss of power or acceleration.
- The check engine light may illuminate on the dashboard.
- The vehicle may go into a fail
- safe or limp mode to protect the drivetrain.
Read & clear P07D2 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.