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 detected that the power going to a part of the gear shift system is too high. It's like when a toy gets too much battery power and might not work right.
The Gear Shift Control Module B is receiving a higher voltage than it should, which can affect its operation.
The P2DA2 code indicates that the voltage supplied to the Gear Shift Control Module B is higher than the specified range. This can be due to issues such as a faulty voltage regulator, wiring problems, or a malfunctioning control module.
• Check engine light is on
• Erratic gear shifting
• Transmission may not shift properly
• Faulty voltage regulator
• Wiring issues such as shorts or open circuits
• Malfunctioning Gear Shift Control Module B
Voltage Regulator: A device that maintains a constant voltage level.
Control Module: A component that manages various functions in a vehicle.
• Use a multimeter to check the voltage supply to the Gear Shift Control Module B.
• Inspect wiring and connectors for damage or corrosion.
• Test the voltage regulator for proper operation.
• Replace or repair faulty wiring or connectors.
• Replace the voltage regulator if it is malfunctioning.
• Replace the Gear Shift Control Module B if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain wiring and connectors.
• Ensure the vehicle's electrical system is in good condition.
• Avoid overloading the vehicle's electrical system.
Electrical Issue
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if you notice shifting problems.
Check your vehicle's warranty for coverage on electrical components.
This code has been associated with vehicles that have had electrical system modifications or issues.
Moderate – It should be addressed soon to avoid potential transmission issues.
Driving with a malfunctioning transmission can be unsafe and may lead to further damage.
• Vehicle in park or neutral
• Engine running
The Gear Shift Control Module B is typically located near the transmission or within the vehicle's control module area.
Q: Can I drive with a P2DA2 code?
A: It's not recommended to drive with this code active, as it can lead to transmission issues.
Q: How can I reset the check engine light for this code?
A: You can use an OBD-II scanner to reset the code, but it's important to fix the underlying issue first.
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