P0784 OBD-II: 4-5 Shift
P0784 Severity
Should you fix P0784 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0784?
The Transmission Control Module (TCM) uses hydraulic pressure an electronic solenoids to select and hold various gears in the transmission. When the TCM detects that the transmission is not holding the requested gear, it will tell the engine control module (PCM) to set code P0784.
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OBD II Fault Code
- OBD II P0784
OBD-II Code Transmission may not shift properly is defined as a 4-5 Shift
The Transmission Control Module (TCM) uses hydraulic pressure an electronic solenoids to select and hold various gears in the transmission. When the TCM detects that the transmission is not holding the requested gear, it will tell the engine control module (PCM) to set code P0784.
Transmission may not shift properly Symptoms
- Transmission may not shift properly
Common Problems That Trigger the P0784 Code
- Internal transmission failure
- Transmission Control Module (TCM) failure
- Transmission fluid level is low
- Transmission solenoid failure
- Wiring issue
Common Repairs Needed for the P0784 Code
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