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 that the sensor measuring the voltage for one of the electric motors is reading too high. It's like when a thermometer shows a temperature that's hotter than it should be.
The P1AEB code indicates that the voltage sensor for the drive motor 'B' is reporting a voltage level that is higher than expected. This could be due to a fault in the sensor, wiring, or the motor itself.
The P1AEB code is triggered when the powertrain control module (PCM) detects a voltage reading from the drive motor 'B' voltage sensor that exceeds the predetermined threshold. This could be caused by a short circuit, a faulty sensor, or an issue with the drive motor.
• Check engine light is on
• Reduced vehicle performance
• Possible issues with electric motor operation
• Faulty drive motor 'B' voltage sensor
• Wiring issues or short circuit in the sensor circuit
• Faulty drive motor 'B'
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, second generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for the drive motor 'B' voltage sensor.
• Test the voltage sensor for proper operation.
• Replace the faulty drive motor 'B' voltage sensor.
• Repair or replace damaged wiring or connectors.
• Replace the drive motor if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance and inspection of electric motor components
• Ensure proper wiring connections
• Use quality replacement parts
Sensor Issue
• Avoid driving the vehicle until the issue is diagnosed.
• Consult with a professional mechanic for accurate diagnosis.
Check vehicle warranty for coverage on electric motor components.
This code is commonly associated with hybrid and electric vehicles due to their reliance on electric drive motors.
Moderate – It's important to address this issue soon to prevent potential damage to the drive motor.
Driving with this code may result in reduced vehicle performance and should be addressed promptly to ensure safety.
• Vehicle in operation
• Electric motor engaged
The drive motor 'B' voltage sensor is typically located near the electric drive motor in the engine compartment.
Q: Can I drive my car with a P1AEB code?
A: It's not recommended to drive with this code as it may lead to further damage to the electric motor.
Q: How do I clear a P1AEB code?
A: After fixing the issue, an OBD-II scanner can be used to clear the code. However, it should not return if the problem is resolved.
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