P0702 OBD-II: Transmission Control System Electrical
P0702 Severity
Should you fix P0702 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 P0702?
The automatic transmission matches the engine optimum power and torque characteristics to the driver's desired rate of acceleration and speed by auto-selecting different gear ratios or 'speeds' to power the wheels. When the Transmission control module (TCM) can not select an engage the correct gear, the engine control module (PCM) will set code P0702.
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What Does P0702 Code Mean?
OBD-II Code P0702 is defined as a Transmission Control System Electrical
The automatic transmission matches the engine optimum power and torque characteristics to the driver's desired rate of acceleration and speed by auto-selecting different gear ratios or 'speeds' to power the wheels. When the Transmission control module (TCM) can not select an engage the correct gear, the engine control module (PCM) will set code P0702.
P0702 Symptoms
- Increased fuel consumption
- Transmission may not shift properly
Common Problems That Trigger the P0702 Code
- Internal transmission failure
- Transmission Control Module (TCM) failure
- Transmission valve body solenoid failure
- Wiring issue
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