Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is getting a signal from the motor's position sensor that is too high, which means it might not know exactly where the motor is.
This code indicates that the signal from the position sensor for Drive Motor 'A' is higher than expected, suggesting a potential issue with the sensor or its circuit.
The Drive Motor 'A' Position Sensor Circuit 'B' is responsible for providing feedback on the position of the drive motor. When the signal is out of range high, it means the voltage or signal level is exceeding the normal operating parameters, which could be due to a short circuit, faulty sensor, or wiring issue.
• Check Engine Light is on
• Reduced vehicle performance
• Unusual motor behavior
• Faulty position sensor
• Wiring issues such as short circuits
• Malfunctioning control module
OBD-II: On-Board Diagnostics, a standardized system in cars for diagnosing issues.
Position Sensor: A device that detects the position of a component, such as a motor.
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connections to the position sensor.
• Test the position sensor for proper operation.
• Replace the faulty position sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure proper electrical connections
• Avoid exposure to extreme conditions
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnostic services if unsure.
• Avoid driving aggressively until the issue is resolved.
Check with your vehicle manufacturer for specific warranty coverage related to sensors.
This code has become more common with the increased use of electric and hybrid vehicles, which rely heavily on motor position sensors.
Moderate – It is advisable to address this issue soon to prevent potential motor damage.
Driving with a malfunctioning position sensor can affect vehicle performance and safety. It is recommended to address the issue promptly.
• Vehicle at operating temperature
• Engine running
The position sensor is typically located on or near the drive motor assembly.
Q: Can I drive with a P1B7E code?
A: While the car may still be drivable, it's best to address the issue to avoid potential damage.
Q: How can I reset the Check Engine Light?
A: After fixing the issue, you can use an OBD-II scanner to clear the code.
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