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 having trouble reading the temperature from a sensor that checks how hot the motor is getting. It's like a thermometer that isn't working right.
This code indicates that the temperature sensor for the drive motor 'A' is not providing readings within the expected range, which might affect the motor's performance.
The P1B75 code is triggered when the Powertrain Control Module (PCM) detects an issue with the range or performance of the temperature sensor circuit for Drive Motor 'A'. This sensor helps monitor the temperature of the motor to ensure it operates within safe limits.
• Check Engine Light illuminated
• Potential reduction in vehicle performance
• Unusual temperature readings on the dashboard
• Faulty temperature sensor
• Wiring issues such as shorts or open circuits
• Poor electrical connections at the sensor
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 damage or corrosion.
• Test the temperature sensor with a multimeter to ensure it is functioning correctly.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, pliers)
$100 - $300
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks of the vehicle's electrical system
• Ensure connectors and wiring are free from corrosion
• Monitor motor temperature readings regularly
Sensor Issue
• Avoid driving the vehicle aggressively until the issue is resolved.
• Consult with a professional mechanic if unsure about the diagnosis.
Check with the vehicle manufacturer for specific warranty coverage on sensors and related components.
This code has been more prevalent with the rise of hybrid and electric vehicles, where motor temperature monitoring is crucial.
Moderate – It should be addressed soon to prevent potential motor damage.
Driving with a faulty temperature sensor can lead to overheating and potential safety hazards.
• Engine at operating temperature
• Vehicle stationary and in a safe location
The temperature sensor is typically located near the drive motor, often in the engine bay or motor compartment.
Q: Can I drive my car with this code?
A: It's best to have it checked soon, as ignoring it could lead to motor damage.
Q: How do I reset the check engine light?
A: After fixing the issue, use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
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