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 there's a problem with the part of the car that helps change gears. It's like when a remote control doesn't have enough power to change channels.
The P0912 code is triggered when the engine control module (ECM) detects a low voltage condition in the gate select actuator circuit.
The gate select actuator is part of the transmission system that helps select the correct gear. A 'circuit low' condition typically indicates that the voltage in the circuit is below the expected range, which can be due to wiring issues, a faulty actuator, or a problem with the power supply.
• Check Engine Light is on
• Difficulty in shifting gears
• Transmission stuck in one gear
• Unusual noises from the transmission
• Faulty gate select actuator
• Wiring issues such as short circuits or open circuits
• Bad connections or corroded connectors
• Faulty ECM or TCM (Transmission Control Module)
ECM: Engine Control Module
TCM: Transmission Control Module
Actuator: A device that causes a mechanical component to move
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the gate select actuator for damage or corrosion.
• Test the actuator for proper operation and voltage levels.
• Check the ECM/TCM for faults or updates.
• Repair or replace damaged wiring or connectors.
• Replace the faulty gate select actuator.
• Update or reprogram the ECM/TCM if necessary.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, wrenches)
$150 - $500
Moderate
• Ford Focus
• Chevrolet Cruze
• Volkswagen Jetta
• Regularly inspect and maintain the transmission system.
• Ensure electrical connections are clean and secure.
• Follow manufacturer-recommended service intervals.
Transmission System Issue
• Avoid driving the vehicle until the issue is diagnosed and repaired.
• Consult a professional mechanic for accurate diagnosis.
• Regularly check for updates on your vehicle's software.
Check with your vehicle manufacturer for specific warranty coverage on transmission components.
This code has been commonly associated with vehicles using electronically controlled transmissions, particularly those with complex gear selection mechanisms.
Moderate – It's important to address this issue to avoid further transmission damage.
Driving with a faulty transmission can lead to safety hazards. Ensure repairs are done promptly.
• Vehicle in park or neutral
• Engine running
The gate select actuator is typically located on or near the transmission housing.
Q: Can I drive with a P0912 code?
A: It's not recommended as it can cause further damage to the transmission.
Q: How do I clear a P0912 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved first.
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