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 a problem with how the second electric motor is controlling its power. It's like when your toy car's motor isn't working right and it can't go as fast as it should.
The P1A38 code is triggered when the drive motor 'B' control module detects an issue with torque monitoring, which is essential for proper motor function.
The P1A38 code indicates that the control module for the drive motor 'B' has detected an anomaly in the torque monitoring system. This could be due to a discrepancy between the expected and actual torque outputs, which can affect vehicle performance and efficiency.
• Reduced vehicle performance
• Illuminated check engine light
• Unusual noises from the motor area
• Faulty drive motor 'B' control module
• Wiring issues or poor connections
• Malfunctioning sensors related to torque monitoring
Torque: A measure of rotational force.
Control Module: A computer that controls a specific function in the vehicle.
• Use an OBD-II scanner to confirm the P1A38 code.
• Inspect the wiring and connections to the drive motor 'B' control module.
• Test the sensors related to torque monitoring for proper operation.
• Repair or replace faulty wiring or connectors.
• Replace the drive motor 'B' control module if necessary.
• Calibrate or replace malfunctioning sensors.
• OBD-II scanner
• Multimeter
• Torque wrench
$200 - $800
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks
• Ensure proper electrical connections
• Monitor vehicle performance for any changes
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Repairs may be covered under the vehicle's powertrain warranty if applicable.
This code is relatively rare and typically associated with hybrid or electric vehicles due to their complex drive systems.
Moderate – It is advisable to address this issue soon to prevent potential damage to the drive motor.
Driving with this code may lead to decreased performance and efficiency, and should be addressed promptly.
• Vehicle must be in operation.
• The drive motor 'B' must be active and under load.
The drive motor 'B' control module is typically located near the motor or integrated within the powertrain control module.
Q: Can I drive with the P1A38 code?
A: It's best to avoid driving until the issue is fixed to prevent further damage.
Q: What happens if I ignore the P1A38 code?
A: Ignoring it can lead to reduced performance and potentially more severe damage to the motor.
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