P0737 Code - TCM Engine Speed Output Circuit
Quick Answer
The P0737 code indicates a problem with the Transmission Control Module (TCM) Engine Speed Output Circuit. Common causes include Faulty engine speed sensor, Damaged wiring or connectors in the engine speed output circuit, TCM malfunction. 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
- P0737 indicates TCM Engine Speed Output Circuit.
- Common causes
- Common causes include Faulty engine speed sensor, Damaged wiring or connectors in the engine speed output circuit, TCM malfunction.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0737 Description
The P0737 code indicates a problem with the Transmission Control Module (TCM) Engine Speed Output Circuit. The TCM is responsible for controlling the transmission's shifting behavior based on input from various sensors, including the engine speed sensor. The engine speed output circuit is crucial for the TCM to accurately determine the engine speed and make appropriate adjustments to the transmission.
Common Causes of P0737
- Faulty engine speed sensor
- Damaged wiring or connectors in the engine speed output circuit
- TCM malfunction
- Corrosion or poor connections in the circuit
- Short circuits or open circuits in the wiring
Symptoms of P0737
- Erratic or harsh shifting
- Delayed or sluggish acceleration
- Engine stalling or misfiring
- Decreased fuel efficiency
- Illumination of the Check Engine Light
How to Fix P0737
- Diagnose the issue using a diagnostic scanner to confirm the P0737 code and pinpoint the exact cause.
- Inspect the engine speed sensor and its wiring for any damage or corrosion. Replace the sensor if necessary.
- Check the wiring and connectors in the engine speed output circuit for any faults. Repair or replace as needed.
- Test the TCM for proper functionality and potential faults. Replace the TCM if it is found to be defective.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0737
The cost of repairing a TCM Engine Speed Output Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's best to get a few quotes from different shops to determine the most cost-effective option. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices.
Need more information about the P0737 code?
Need more information on how to fix the P0737 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0737 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0737 Code
1. What are the common symptoms of OBDII code P0737 (TCM Engine Speed Output Circuit)?
- Common symptoms include harsh shifting, slipping transmission, decreased fuel efficiency, and illuminated Check Engine light.
2. What are the possible causes of OBDII code P0737?
- The code may be caused by a faulty transmission control module (TCM), damaged wiring or connectors in the engine speed output circuit, or a malfunctioning engine speed sensor.
3. How can I diagnose OBDII code P0737?
- Diagnosis typically involves using a scan tool to read the code, inspecting the wiring and connectors for damage, and testing the engine speed sensor for proper operation.
4. Can I drive my vehicle with OBDII code P0737?
- It is not recommended to drive your vehicle with this code as it can lead to further damage to the transmission. It is best to have the issue diagnosed and repaired promptly.
5. How can I repair OBDII code P0737?
- Repair may involve replacing a faulty engine speed sensor, repairing damaged wiring or connectors, or replacing the TCM if necessary. It is recommended to have a professional mechanic perform the repair.
6. Are there any DIY tips for fixing OBDII code P0737?
- DIY tips include checking and cleaning the connectors in the engine speed output circuit, inspecting for visible wire damage, and ensuring proper installation of any replaced components.
7. Is OBDII code P0737 a serious issue?
- Yes, this code can indicate potential transmission problems that can worsen over time if left unresolved. It is important to address the issue promptly to prevent further damage.
8. Can weather conditions affect OBDII code P0737?
- Extreme weather conditions, such as extreme heat or cold, can sometimes exacerbate issues related to the engine speed output circuit. It is important to keep this in mind when diagnosing the problem.
9. How long does it typically take to repair OBDII code P0737?
- The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. In general, repairs for this code can take a few hours to a full day.
10. Will resetting the OBDII code P0737 make it go away permanently?
- Simply resetting the code may temporarily turn off the Check Engine light, but if the underlying issue is not addressed, the code is likely to return. It is crucial to diagnose and repair the root cause of the problem.
Discuss the causes and fixes for P0737 OBDII Code
Code P0737 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.