Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble reading a part that tells it what gear the car is in, because the power going to that part isn't right.
The Transmission Range Sensor (TRS) is responsible for informing the vehicle's computer about the current gear position. If the supply voltage to this sensor is not within the expected range, the computer cannot accurately determine the gear position.
The P18E7 code indicates that the supply voltage to the Transmission Range Sensor is not within the specified range, which can lead to incorrect gear position readings. This may result from issues such as wiring problems, a faulty sensor, or a malfunctioning power supply.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start or move
• Faulty Transmission Range Sensor
• Wiring issues or poor connections
• Malfunctioning power supply to the sensor
Transmission Range Sensor: A sensor that detects the gear position of the transmission.
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics and reporting.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors to the Transmission Range Sensor.
• Test the voltage supply to the sensor.
• Repair or replace damaged wiring or connectors.
• Replace the Transmission Range Sensor if faulty.
• Ensure proper voltage supply to the sensor.
• OBD-II Scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly inspect wiring and connectors for damage.
• Ensure battery and electrical system are in good condition.
• Perform routine maintenance checks.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving the vehicle if it exhibits transmission issues.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with issues in vehicles with electronic transmission control systems, particularly in models with complex wiring harnesses.
Moderate – While the vehicle may still be drivable, it is important to address this issue to prevent potential transmission damage.
Ignoring this code may lead to unsafe driving conditions due to potential transmission failure.
• Vehicle at operating temperature
• Transmission in park or neutral
The Transmission Range Sensor is typically located on the transmission housing, near the shift linkage.
Q: Can I drive with a P18E7 code?
A: It's not recommended to drive with this code as it may lead to transmission issues.
Q: How do I reset the P18E7 code?
A: After repairs, use an OBD-II scanner to clear the code from the vehicle's computer.
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