P0813 Code - Reverse Output Circuit
Quick Answer
The P0813 diagnostic trouble code (DTC) refers to the Reverse Output Circuit. Common causes include Faulty reverse light switch, Damaged wiring or connectors in the reverse output circuit, Malfunctioning transmission control module (TCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0813 indicates Reverse Output Circuit.
- Common causes
- Common causes include Faulty reverse light switch, Damaged wiring or connectors in the reverse output circuit, Malfunctioning transmission control module (TCM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0813 Description
The P0813 diagnostic trouble code (DTC) refers to the Reverse Output Circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the reverse gear in the vehicle's transmission system. When this code is triggered, it can lead to issues with shifting into reverse or engaging the reverse gear properly. This can result in difficulty backing up, delayed engagement, or even complete failure to shift into reverse.
Common Causes of P0813
- Faulty reverse light switch
- Damaged wiring or connectors in the reverse output circuit
- Malfunctioning transmission control module (TCM)
- Low transmission fluid level
- Internal transmission issues
Symptoms of P0813
- Difficulty shifting into reverse gear
- Delayed engagement when shifting into reverse
- Inability to engage reverse gear
- Harsh or jerky movement when backing up
- Illumination of the Check Engine Light
How to Fix P0813
- Diagnose the issue by using a scan tool to retrieve the trouble codes and inspecting the reverse output circuit for any visible damage.
- Check the reverse light switch and wiring for any signs of damage or corrosion. Replace any faulty components.
- Inspect the transmission control module (TCM) for proper operation and replace if necessary.
- Check the transmission fluid level and top off if low. Inspect for any leaks that may be causing the fluid level to drop.
- Clear the trouble codes from the vehicle's computer and test the vehicle to ensure that the issue has been resolved.
Cost to Fix P0813
The cost of repairing a P0813 code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the repair cost for this issue can range from $150 to $500, including parts and labor. However, it is essential to note that diagnostic time and labor rates at auto repair shops can vary significantly based on location, vehicle type, and other factors. It is advisable to consult with a professional mechanic to get a more accurate estimate for your specific situation.
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Code P0813 Information for Specific Makes
- P0813 Chrysler — Reverse Output Circuit
- P0813 Dodge — Reverse Output Circuit
- P0813 Hyundai — Reverse Output Circuit
- P0813 Jeep — Reverse Output Circuit
- P0813 Mazda — Reverse Output Circuit
- P0813 Mercedes-Benz — Reverse Output Circuit
Frequently Asked Questions about P0813 Code
1. What are the common symptoms of OBDII code P0813 (Reverse Output Circuit)?
When this code is triggered, you may experience issues with the vehicle's automatic transmission, such as difficulty shifting into reverse or erratic behavior when in reverse gear.
2. What are the possible causes of OBDII code P0813?
The most common causes of code P0813 include a faulty reverse light switch, damaged or corroded wiring in the reverse light circuit, or a malfunctioning transmission range sensor.
3. How can I diagnose OBDII code P0813?
To diagnose code P0813, you can use an OBDII scanner to retrieve the fault code and then visually inspect the reverse light switch, wiring, and transmission range sensor for any signs of damage or corrosion.
4. Can I drive my vehicle with OBDII code P0813?
It is not advisable to drive your vehicle with code P0813 as it can lead to safety issues due to potential problems with the reverse gear function. It is recommended to address the issue promptly.
5. How can I repair OBDII code P0813?
Depending on the cause of the code, you may need to replace the reverse light switch, repair damaged wiring, or replace the transmission range sensor. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.
6. Will resetting the OBDII code P0813 resolve the issue?
While clearing the fault code may temporarily turn off the check engine light, it will not fix the underlying issue causing code P0813. It is crucial to address the root cause of the problem for a permanent solution.
7. Can a DIY enthusiast fix OBDII code P0813 at home?
If you have experience working on automotive electrical systems and access to the necessary tools, you may be able to diagnose and repair code P0813 at home. However, complex transmission-related issues may require professional expertise.
8. Is OBDII code P0813 specific to certain vehicle makes and models?
Code P0813 can be found in various vehicle makes and models equipped with OBDII systems. However, the specific diagnostic and repair procedures may vary, so it is essential to consult the vehicle's service manual.
9. How much does it cost to repair OBDII code P0813?
The cost of repairing code P0813 can vary depending on the cause of the issue, the labor rates in your area, and the parts needed for repair. It is advisable to obtain multiple quotes from reputable repair shops.
10. Can a loose or disconnected battery cause OBDII code P0813 to appear?
In some cases, a loose or disconnected battery may reset the vehicle's computer, causing the code P0813 to appear. However, if the underlying issue is not resolved, the code is likely to reappear once the vehicle is driven again.
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