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 confused about which gear the car is in. It's like when you think you're in first gear but you're actually in second.
The transmission range sensor tells the car's computer what gear the transmission is in. If the signals from the two sensors (A and B) don't match, the computer sets this code.
P2805 is triggered when the Powertrain Control Module (PCM) detects an inconsistency between the signals from the Transmission Range Sensor A and Sensor B. These sensors are responsible for indicating the current gear position to the PCM. A mismatch in the signals can lead to incorrect gear engagement.
• Check Engine Light is on
• Transmission may not shift properly
• Vehicle may not start
• Faulty transmission range sensor
• Wiring issues such as short circuits or open circuits
• Faulty PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors of the transmission range sensor.
• Test the transmission range sensor for proper operation.
• Replace the faulty 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
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly check and maintain transmission fluid levels.
• Inspect wiring and connectors for damage.
• Follow manufacturer-recommended maintenance schedules.
Sensor Issue
• Do not ignore the Check Engine Light.
• Avoid driving the vehicle if it is not shifting properly.
• Consult a professional mechanic for diagnosis and repair.
Check with your vehicle manufacturer for specific warranty coverage related to the transmission system.
This code has been associated with issues in vehicles with electronic transmission controls since the introduction of OBD-II systems.
Moderate – It should be addressed soon to prevent potential transmission damage.
Driving with a malfunctioning transmission can be unsafe. Address the issue promptly to ensure vehicle safety.
• 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 my car with a P2805 code?
A: It's not recommended to drive with this code as it can lead to transmission issues and unsafe driving conditions.
Q: How can I reset the P2805 code?
A: After repairs, you can use an OBD-II scanner to clear the code. However, if the issue isn't fixed, the code will return.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.