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 a sensor in the car is saying the motor is getting way too hot, like when you have a fever and your temperature is too high.
The code indicates that the temperature sensor for the drive motor 'A' is reading a temperature that is higher than the expected range.
The P1B6A code is triggered when the Powertrain Control Module (PCM) detects a temperature reading from the drive motor 'A' that is outside the normal operating range. This could be due to a faulty sensor, wiring issues, or an actual overheating condition.
• Check Engine Light is on
• Reduced vehicle performance
• Possible overheating warning on the dashboard
• Faulty drive motor 'A' temperature sensor
• Wiring issues or poor connections
• Actual overheating of the drive motor
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the temperature sensor.
• Check the actual temperature of the drive motor to see if it's overheating.
• Replace the drive motor 'A' temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Address any overheating issues with the drive motor.
• OBD-II scanner
• Multimeter
• Thermal camera or infrared thermometer
$150 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly check and maintain coolant levels.
• Inspect wiring and connectors periodically.
• Avoid excessive loads that can overheat the motor.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Monitor the vehicle's performance for any changes.
Check if the vehicle's powertrain warranty covers sensor replacement.
This code has been associated with hybrid and electric vehicles where motor temperature monitoring is critical.
Moderate – Address the issue soon to avoid potential motor damage.
Driving with an overheating motor can lead to further damage and is not recommended.
• Vehicle at operating temperature
• Drive motor under load
The drive motor 'A' temperature sensor is typically located near the drive motor assembly.
Q: Can I drive with a P1B6A code?
A: It's not recommended to drive for long periods with this code as it could lead to motor damage.
Q: How can I reset the P1B6A code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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