P0784
4-5 Shift
P0784 is an OBD-II diagnostic trouble code meaning: 4-5 Shift. Common causes: low or contaminated transmission fluid, shift solenoids malfunction. Estimated repair cost: $17–167.
Symptoms
- Difficulty switching between 4th and 5th gears
- Jerks when shifting gears
- The gearbox goes into emergency mode
- Increased fuel consumption
- Check Engine light comes on
Causes
- Low or contaminated transmission fluid
- Shift solenoids malfunction
- Problems with the hydraulic control unit
- Wear of mechanical components of the gearbox
- Malfunction of speed sensors
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the operation of switching solenoids
- Check the hydraulic pressure in the system
- Scan the transmission for additional errors
- If necessary, replace faulty components
Related codes
Error P0784 by Vehicle Brand
FAQ
What does the P0784 code mean?
P0784 is an OBD-II diagnostic trouble code that indicates: 4-5 Shift
What causes a P0784 error code?
The most common causes of P0784 include: Low or contaminated transmission fluid; Shift solenoids malfunction; Problems with the hydraulic control unit; Wear of mechanical components of the gearbox.
How do I fix a P0784 diagnostic trouble code?
To fix P0784: Check the level and condition of the transmission fluid. Diagnose the operation of switching solenoids. Check the hydraulic pressure in the system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0784?
Limited driving only, diagnose soon
How much does it cost to fix P0784?
The estimated repair cost for P0784 is $17–167. Actual cost depends on your vehicle, location, and labor rates.
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