P0B02 Code - Auxiliary Transmission Fluid Pump Motor Phase U Current High
Quick Answer
The diagnostic trouble code P0B02 indicates that the auxiliary transmission fluid pump motor phase U current is reading higher than normal. Common causes include Faulty auxiliary transmission fluid pump motor, Wiring or connection issues in the motor circuit, High resistance in the motor circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0B02 indicates Auxiliary Transmission Fluid Pump Motor Phase U Current High.
- Common causes
- Common causes include Faulty auxiliary transmission fluid pump motor, Wiring or connection issues in the motor circuit, High resistance in the motor circuit.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0B02 Description
The diagnostic trouble code P0B02 indicates that the auxiliary transmission fluid pump motor phase U current is reading higher than normal. This component is responsible for circulating transmission fluid to ensure proper lubrication and cooling of the transmission system. When the current is too high, it can lead to various issues within the transmission system, affecting the vehicle's overall performance.
Common Causes of P0B02
- Faulty auxiliary transmission fluid pump motor.
- Wiring or connection issues in the motor circuit.
- High resistance in the motor circuit.
- Overheating of the transmission system.
- Electrical issues in the transmission control module.
Symptoms of P0B02
- Check engine light illuminated on the dashboard.
- Transmission slipping or delayed engagement.
- Harsh shifting or jerking movements while driving.
- Transmission overheating.
- Decreased fuel efficiency.
How to Fix P0B02
- Begin by diagnosing the specific cause of the high current in the auxiliary transmission fluid pump motor.
- Inspect the motor, wiring, and connections for any visible damage or corrosion.
- Test the motor's resistance and current draw to determine if it is operating within specifications.
- Replace the auxiliary transmission fluid pump motor if it is found to be faulty.
- Clear the diagnostic trouble code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0B02
The cost of repairing a high current in the auxiliary transmission fluid pump motor phase U can vary depending on the specific cause of the issue and the vehicle's make and model. On average, the repair cost can range from $200 to $500, including parts and labor. It is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is recommended to obtain quotes from multiple sources to get an accurate estimate.
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