Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer has detected a problem with the electrical circuit that controls the reverse gear. It's like when a light switch doesn't work because there's a problem with the wires.
The P0813 code is triggered when the powertrain control module (PCM) detects an issue with the reverse output circuit. This could be due to a malfunction or disconnection in the wiring or components that control the reverse gear.
The P0813 code indicates that there is a fault in the reverse output circuit, which is responsible for activating the reverse gear in the transmission. This circuit includes the wiring, connectors, and possibly the transmission control module (TCM) or PCM. A fault could be due to an open or short circuit, damaged wires, or a faulty control module.
• Unable to engage reverse gear
• Check Engine Light illuminated
• Transmission stuck in limp mode
• Faulty reverse gear solenoid
• Damaged wiring or connectors in the reverse circuit
• Faulty transmission control module (TCM)
PCM: Powertrain Control Module
TCM: Transmission Control Module
• Check for any other related trouble codes.
• Inspect the wiring and connectors related to the reverse circuit for damage or disconnection.
• Test the reverse gear solenoid for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty reverse gear solenoid.
• Replace or reprogram the transmission control module (TCM) if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain transmission wiring.
• Avoid harsh driving that could damage the transmission.
• Keep the transmission fluid clean and at the proper level.
Transmission Control Issue
• Avoid driving the vehicle until the issue is resolved, as it may cause further damage.
• Consult a professional mechanic for a proper diagnosis and repair.
Check with your vehicle manufacturer to see if the transmission components are covered under warranty.
The P0813 code has been commonly reported in vehicles with automatic transmissions, particularly in older models where wiring and connectors may degrade over time.
High – This issue can prevent the vehicle from reversing, which is a significant inconvenience and safety risk.
Driving with a malfunctioning reverse gear can be dangerous and may lead to accidents or further vehicle damage.
• Vehicle in park with engine running.
• Attempt to engage reverse gear.
The reverse gear solenoid and related wiring are typically located within or near the transmission housing.
Q: Can I drive my car with a P0813 code?
A: It's not recommended to drive with this code, as it can prevent you from using reverse gear and may cause further damage.
Q: How can I reset the P0813 code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first to prevent the code from returning.
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