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 your car has a problem with its programming. It's like when a video game doesn't load correctly because there's a mistake in the code.
The P0602 code indicates that the vehicle's control module has detected an error in its programming or software.
The P0602 code is triggered when the Powertrain Control Module (PCM) or another control module detects a programming error. This could be due to corrupted software, incorrect programming, or a failed update. The control module relies on precise software to manage the vehicle's operations, and any discrepancy can lead to this error code.
• Check Engine Light is on
• Vehicle may not start
• Poor engine performance
• Corrupted software in the control module
• Failed software update
• Incorrect programming or coding of the control module
Control Module: A computer in the vehicle that manages various functions.
PCM: Powertrain Control Module, responsible for engine and transmission management.
• Use an OBD-II scanner to confirm the code.
• Check for any available software updates for the control module.
• Inspect the control module for signs of physical damage.
• Reprogram the control module with the latest software.
• Replace the control module if reprogramming fails.
• Ensure all connections to the control module are secure.
• OBD-II scanner
• Programming tool for control module
• Multimeter
$150 to $1200, depending on whether the module needs reprogramming or replacement.
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly update control module software.
• Avoid interrupting software updates.
• Use only authorized service centers for programming.
Control Module Programming Error
• If the vehicle is under warranty, contact the dealership for a software update.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
Check if the vehicle's warranty covers control module programming or replacement.
P0602 has been a common issue in vehicles with complex electronic systems, often related to software updates or programming errors.
Moderate – While the vehicle may still operate, it could lead to further issues if not addressed.
Driving with a malfunctioning control module can lead to unsafe driving conditions. Address the issue promptly.
• Vehicle must be stationary.
• Ignition on, engine off.
The control module is typically located in the engine bay or under the dashboard.
Q: Can I drive with a P0602 code?
A: It's not recommended to drive with this code as it may lead to further vehicle issues.
Q: How do I fix a P0602 code?
A: You may need to reprogram or replace the control module. Consult a professional mechanic.
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