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P06B4 Severity
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
The engine computer (PCM) supplies power to all the sensors on the vehicle. If there is a problem with the power supply to the sensors, code P06B4 will be set.
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OBD-II Code Powertrain Control Module (PCM) failure is defined as a Sensor Power Supply "B" Circuit Low
The engine computer (PCM) supplies power to all the sensors on the vehicle. If there is a problem with the power supply to the sensors, code P06B4 will be set.