Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer is having trouble talking to a part that helps change gears. It's like when a walkie-talkie has a bad signal.
The Transmission Mode Switch E Circuit is responsible for sending signals to the transmission control module. A 'Circuit Low' error indicates that the voltage in this circuit is below the expected range.
The P07D2 code is triggered when the transmission control module (TCM) detects a low voltage condition in the Transmission Mode Switch E Circuit. This could be due to a wiring issue, a faulty switch, or a problem with the TCM itself.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may enter limp mode
• Faulty transmission mode switch
• Wiring issues or poor connections
• Defective transmission control module (TCM)
Transmission Control Module (TCM): A computer that controls the transmission functions in a vehicle.
Limp Mode: A safety feature that limits the vehicle's performance to prevent damage.
• Check for other related codes
• Inspect the wiring and connectors for damage
• Test the transmission mode switch for proper operation
• Repair or replace damaged wiring or connectors
• Replace the faulty transmission mode switch
• Replace or reprogram the transmission control module if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect wiring and connectors
• Keep transmission fluid at the proper level
• Perform routine transmission maintenance
Sensor Issue
• Avoid driving the vehicle until repaired to prevent further damage
• Consult a professional mechanic for diagnosis and repair
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with issues in vehicles with electronic transmission controls, particularly in models from the early 2010s.
Moderate – Should be addressed soon to avoid potential transmission damage.
Driving with a malfunctioning transmission can be dangerous and may lead to further damage.
• Vehicle at operating temperature
• Transmission in different modes
The transmission mode switch is typically located on or near the transmission housing.
Q: Can I drive with a P07D2 code?
A: It's not recommended to drive with this code, as it can lead to transmission damage.
Q: How is a transmission mode switch tested?
A: A multimeter is used to check the switch's voltage and resistance to ensure it operates correctly.
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