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 is having trouble talking to the part that helps it know which gear the car is in. It's like when your phone can't connect to the internet.
The Transmission Range Control Module is responsible for determining the gear position of the vehicle. A 'circuit high' condition indicates that the voltage in the communication circuit is higher than expected.
The P07F4 code is triggered when the Powertrain Control Module (PCM) detects a high voltage condition in the communication circuit of the Transmission Range Control Module. This can indicate a wiring issue, a faulty module, or a problem with the power supply to the module.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may enter limp mode
• Faulty Transmission Range Control Module
• Open or shorted wiring in the communication circuit
• Poor electrical connection in the circuit
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the voltage levels in the communication circuit.
• Repair or replace damaged wiring or connectors.
• Replace the Transmission Range Control Module if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain transmission components.
• Ensure electrical connections are clean and secure.
• Avoid harsh driving conditions that may stress the transmission.
Communication Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code is relatively uncommon and typically associated with specific vehicle models known for transmission control issues.
Moderate – Address promptly to prevent potential transmission damage.
Ignoring this code can lead to unsafe driving conditions. Always address check engine lights promptly.
• Vehicle in park or neutral
• Engine running and at operating temperature
The Transmission Range Control Module is typically located near the transmission or integrated into the transmission control unit.
Q: Can I drive with a P07F4 code?
A: It's not recommended to drive with this code active, as it may lead to transmission issues.
Q: How do I reset the P07F4 code?
A: After repairs, use an OBD-II scanner to clear the code and test drive the vehicle.
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