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 thinks the temperature sensor for the electric motor is saying it's too cold, which might be wrong.
The P1B69 code is triggered when the temperature sensor for the drive motor 'A' reports a temperature that is lower than expected, indicating a possible sensor malfunction or wiring issue.
The Drive Motor 'A' Temperature Sensor monitors the temperature of the motor to ensure it operates within safe limits. If the sensor reports a temperature that is too low, it may indicate a fault in the sensor circuit, such as a short to ground, or an issue with the sensor itself.
• Check Engine Light illuminated
• Reduced vehicle performance
• Possible overheating of the motor if not addressed
• Faulty temperature sensor
• Wiring issues such as a short circuit
• Faulty ECM (Engine Control Module)
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly check and maintain wiring harnesses.
• Ensure connectors are clean and secure.
• Schedule regular maintenance checks.
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle aggressively until the issue is resolved.
Check with the manufacturer for warranty coverage on the drive motor and related components.
This code has been reported in electric and hybrid vehicles where temperature monitoring is crucial for motor protection.
Moderate – It should be addressed soon to prevent potential motor damage.
Driving with an unresolved issue can lead to further damage and may void warranties.
• Vehicle at operating temperature
• Stable electrical system voltage
The temperature sensor is typically located near the drive motor, often integrated into the motor housing.
Q: Can I drive with a P1B69 code?
A: It's not recommended as it may lead to motor damage if the actual temperature is not being monitored correctly.
Q: How do I reset the P1B69 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.