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 computer in a hybrid or electric car is having trouble shutting down properly. It's like when you try to turn off your tablet, but it doesn't turn off completely.
The code P1A44 indicates that the powertrain control module in a hybrid or electric vehicle is not performing its shutdown sequence as expected.
The powertrain control module (PCM) in a hybrid or electric vehicle is responsible for managing the vehicle's powertrain systems, including the engine and electric motor. Code P1A44 is triggered when the PCM does not complete its shutdown procedure correctly, which could lead to issues with power management and vehicle operation.
• Check engine light is on
• Vehicle may not turn off properly
• Reduced performance or power issues
• Faulty powertrain control module
• Software glitch in the PCM
• Electrical issues such as a bad connection or short circuit
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code
• Inspect the PCM for any visible damage or loose connections
• Check for software updates or reprogram the PCM
• Reprogram or update the PCM software
• Repair or replace faulty wiring or connectors
• Replace the PCM if necessary
• OBD-II scanner
• Multimeter
• Diagnostic software tool
$200 - $1000
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular software updates
• Routine electrical system checks
• Proper maintenance of vehicle's electrical components
Powertrain Control Module Issue
• Ensure your vehicle's software is up to date
• Have regular check-ups for your hybrid or electric vehicle
• Consult a professional if you notice any performance issues
Check with your vehicle manufacturer for warranty coverage on electronic control modules.
This code has become more common as hybrid and electric vehicles have increased in popularity, highlighting the importance of software and electronic component reliability.
Moderate – It may not cause immediate issues but should be addressed to prevent potential powertrain problems.
Ignoring this code could lead to vehicle performance issues, which may affect safety. Always address check engine light warnings promptly.
• Vehicle in park or neutral
• Engine off with ignition on
The powertrain control module is typically located under the hood or beneath the dashboard in the vehicle's cabin.
Q: Can I drive my car with this code?
A: It's possible to drive, but it's recommended to address the issue to avoid potential performance problems.
Q: Will this code affect my car's battery?
A: It might, as improper shutdowns can lead to battery drain over time.
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