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 understanding what gear you want to be in because a sensor isn't working right.
The Transmission Range Sensor (TRS) sends information to the vehicle's computer about the gear position. If there's a problem with this sensor or its circuit, the computer can't correctly determine the gear position.
The P1848 code indicates an issue with the transmission range sensor circuit, which is responsible for communicating the current gear position to the vehicle's powertrain control module (PCM). This can affect the transmission's ability to shift properly.
• Check Engine Light is on
• Transmission may not shift correctly
• Vehicle may not start in certain gears
• Faulty transmission range sensor
• Damaged or corroded wiring or connectors
• Faulty PCM
Transmission Range Sensor: A sensor that detects the gear position of the transmission.
PCM: Powertrain Control Module, the main computer in a vehicle that controls the engine and transmission.
• Use an OBD-II scanner to confirm the code
• Inspect the transmission range sensor and its wiring
• Test the sensor for proper operation
• Replace the transmission range sensor
• Repair or replace damaged wiring or connectors
• Reprogram or replace the PCM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Keep electrical connections clean
• Avoid harsh driving conditions
Sensor Issue
• Avoid driving if the transmission is not shifting properly
• Get the vehicle inspected by a professional
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with issues in vehicles with automatic transmissions, particularly in models with known sensor reliability problems.
Moderate – It should be addressed soon to avoid transmission damage.
Driving with a faulty transmission sensor can lead to unsafe driving conditions. Address the issue promptly.
• Vehicle in park or neutral
• Engine running
The transmission range sensor is typically located on the side of the transmission housing.
Q: Can I drive with a P1848 code?
A: It's not recommended as it can lead to transmission issues and unsafe driving conditions.
Q: How do I reset the P1848 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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