Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has detected a problem with the electric pump that helps move the transmission fluid. It's like a helper motor isn't working right, and it's not using enough electricity.
The code indicates that the current (electricity flow) in the W phase of the electric or auxiliary transmission fluid pump motor is lower than expected.
The P0B07 code is triggered when the powertrain control module (PCM) or transmission control module (TCM) detects that the current in the W phase of the electric/auxiliary transmission fluid pump motor is below the threshold set by the manufacturer. This could indicate a malfunction in the motor, wiring, or related components.
• Check Engine Light is on
• Transmission may not shift properly
• Reduced fuel efficiency
• Faulty electric/auxiliary transmission fluid pump motor
• Damaged or corroded wiring or connectors
• Faulty PCM or TCM
PCM: Powertrain Control Module
TCM: Transmission Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the electric/auxiliary transmission fluid pump motor for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the electric/auxiliary transmission fluid pump motor if faulty.
• Reprogram or replace the PCM/TCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Ford Fusion Hybrid
• Regular maintenance of the transmission system
• Ensure electrical connections are clean and secure
• Monitor for unusual transmission behavior
Sensor Issue
• Address the issue promptly to avoid further transmission damage.
• Consult a professional mechanic for accurate diagnosis.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been more common in hybrid and electric vehicles due to their reliance on electric pumps.
Moderate – It should be addressed soon to prevent potential transmission damage.
Ignoring this code may lead to transmission failure, which can be a safety hazard.
• Vehicle must be running
• Transmission fluid at operating temperature
The electric/auxiliary transmission fluid pump is typically located near the transmission assembly.
Q: Can I drive with a P0B07 code?
A: It's not recommended to drive for long periods with this code, as it may lead to transmission issues.
Q: How do I reset the P0B07 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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