What is the code P0700 on a 2014 Chevy Spark?

The P0700 code on a 2014 Chevy Spark indicates a generic transmission-control-system fault. It does not specify a single failed component by itself; rather, it signals that the transmission control module (TCM) or engine-control module (ECM) has detected a problem and stored additional, more specific codes. A proper diagnosis requires pulling all related transmission codes and inspecting the transmission system.

What does P0700 mean?

P0700 stands for "Transmission Control System Malfunction." It is a generic diagnostic trouble code that the vehicle’s computer sets when it detects a fault affecting the transmission control system. In many vehicles, including GM models like the Spark, P0700 is a wrapper code that accompanies one or more secondary codes stored in the TCM or PCM. Those secondary codes point to the exact issue—such as a faulty sensor, solenoid, or valve body—and guide the repair process. In short, P0700 tells you to look deeper into the transmission’s electronic controls rather than presenting a single, fix-it item.

P0700 and the 2014 Chevy Spark

For the 2014 Spark, which can be equipped with an automatic transmission controlled by a TCM, P0700 typically appears alongside other codes that identify the specific problem area. Potential related problems include sensors (input/output speed sensors, transmission range sensor), solenoids, valve body issues, wiring or connector faults, software calibration problems, or even low-quality transmission fluid. Because the Spark’s transmission relies on electronic control, even a software update or a simple wiring fault can trigger P0700 without an obvious mechanical failure.

Common causes

These are among the most frequent triggers behind a P0700 code in a 2014 Chevy Spark. Note that the exact cause varies by vehicle and incident.

• Faulty or outdated TCM/PCM software or calibration


• Damaged, corroded, or loose wiring or connectors to the transmission sensors or solenoids


• A failed transmission input or output speed sensor, or a faulty transmission range sensor


• Malfunctioning shift solenoids or valve-body issues inside the transmission


• Low, dirty, or contaminated transmission fluid or a fluid leak


• Mechanical wear or damage within the transmission that affects shifting

Because P0700 is a general warning, it should be treated as a cue to identify and address the underlying issue rather than a stand-alone fix.

Diagnosis steps

Technicians typically follow a structured approach to verify P0700 and pinpoint the root cause. The following steps mirror common professional practices.

1. Connect a professional OBD-II scanner to retrieve all current and pending codes, along with freeze-frame data and live data streams.


2. Look for accompanying secondary codes stored with P0700 to guide the investigation.


3. Check the transmission fluid level and condition; address any leaks and replace fluid if necessary.


4. Inspect electrical connectors and wiring between the PCM/TCM and the transmission, including sensors and the valve body connections.


5. Check for GM service bulletins or software updates and apply reflash or calibration updates if available.


6. Review live data (sensor readings, gear position, and solenoid operation) to identify faulty sensors or abnormal patterns.


7. Repair or replace identified components (for example, solenoids, valve body components, sensors, or the TCM/PCM) as indicated by the codes and tests.


8. Test drive to confirm normal shifting and ensure that the codes do not recur.

Keep in mind that some fixes may be simple (fluid change or wiring repair), while others could involve more extensive transmission service or module replacement, with varying costs.

What to do now

If you see P0700 on a 2014 Chevy Spark, arrange a diagnostic with a qualified technician—especially if the check engine light is on and you notice shifting issues, slipping, or rough shifts. Avoid aggressive driving if the transmission behavior feels abnormal, as continuing operation could lead to further damage. A dealership or reputable independent shop can perform a full diagnostic using your vehicle’s VIN to pull bulletins and confirm the correct repair path.

Expect a diagnostic fee first, followed by repair work based on the secondary codes and test results. Costs vary widely depending on the exact fault and regional labor rates.

Cost considerations

Costs depend on the underlying issue. The following ranges provide planning guidance, but actual prices will vary by location and specific repair needs.

• Diagnostic fee: typically around $80–$150


• Software updates or TCM reprogramming: often $60–$200


• Sensor or solenoid replacement: parts plus labor commonly $200–$800


• Valve body or transmission service (if required): $400–$1,500


• Transmission fluid flush/change: $150–$300


• Full transmission replacement: potentially $2,000–$4,000+ depending on model and warranty

These figures are estimates and depend on the exact fault, whether the vehicle is under warranty, and local labor rates.

Summary

P0700 is a general signal that something in the Spark’s transmission control system is malfunctioning. It does not identify a specific component by itself. In the 2014 Chevy Spark, P0700 is typically accompanied by secondary codes that point to the precise issue—sensor, solenoid, valve body, or software problems. A structured diagnostic approach—pulling all codes, checking fluid and wiring, and evaluating sensor data—helps determine whether simple fixes (like fluid or wiring repair) or more extensive transmission service is required. Prompt, professional diagnosis can prevent further damage and clarify the expected repair path and costs.

What is the code P0700 on a Chevy Spark?

A Chevy Spark with a P0700 code has a general transmission control system malfunction, often related to sensors, wiring, or low/dirty transmission fluid. Symptoms can include a check engine light, rough shifting, poor gas mileage, and even the vehicle getting stuck in a gear. To fix it, start by checking and replacing any related specific codes with a specialized scanner, then inspect the transmission fluid level and condition, and check for wiring or sensor issues.
 
This video explains how to fix P0700 error code: 1mnondaYouTube · Dec 14, 2020
What the code means

• The P0700 code indicates a problem with the transmission control system, which can be caused by issues in many areas. 
• It is a generic code, meaning it does not pinpoint a single problem but alerts the driver that the Powertrain Control Module (PCM) has detected a fault within the transmission control system. 

Common causes

• Low or dirty transmission fluid: This can cause shifting problems. 
• Faulty sensors: Issues with the transmission speed sensors (input/output) are common causes. 
• Wiring or connector issues: Corrosion, damage, or loose connections to sensors or the transmission control module (TCM) can cause the code. 
• Faulty components: The issue could be with solenoids, the valve body, or other internal transmission parts. 

How to troubleshoot and fix

1. Scan for more specific codes: The P0700 code is general. Use a specialized scan tool to read any additional codes that may be stored in the TCM, as they will provide more specific clues (e.g., P0722 for an output speed sensor). 
2. Check the transmission fluid: Inspect the fluid level and condition. If it's low, add the correct type. If it's dirty, a fluid change is recommended. 
3. Inspect electrical connections: Check all wiring and connectors related to the transmission, including the TCM, speed sensors, and solenoids, for any signs of damage, corrosion, or loose connections. 
4. Examine sensors: Check for damaged or improperly seated sensors, especially the input and output speed sensors. 
5. Consider component failure: If the above steps don't reveal the issue, a faulty component like a solenoid, the valve body, or the TCM itself could be the cause. 

You can watch this video to learn about the causes of P0700 code: 52sHVAC Mechanic YouTube · Dec 6, 2022

How to reset TCM on 2014 Chevy Spark?

While holding the pedal. Down turn off the ignition. Then let go of the gas pedal. And wait 5 minutes before restarting or Chevy. Finally take your Chevy for a quick drive notice how the gear shifts.

How do I fix error code P0700?

To fix a P0700 code, first check the transmission fluid level and condition, and address any low levels or dirty fluid. Next, use a scan tool to check for any additional transmission-specific codes, which can point to a faulty sensor, shift solenoid, or valve body. If the problem isn't obvious, inspect the transmission's wiring and electrical connectors for damage, corrosion, or poor connections, as well as the Transmission Control Module (TCM) itself. 
Initial checks and simple fixes

• Check transmission fluid: Check the transmission fluid level and look for it to be dark or contain metal shavings. If it's low, add more fluid. If it's dirty, a fluid and filter change may be necessary. 
• Clear the code: Disconnect the car battery overnight to reset the system, or use a scan tool to clear the code. If the code returns, a more in-depth diagnosis is needed. 
• Inspect wiring: Visually inspect the wiring harnesses and electrical connectors for the transmission for any signs of damage, loose connections, or corrosion. Clean terminals and repair any damaged wires. 

Further diagnosis and repairs

• Use a scan tool: A more advanced scan tool is crucial for this step, as it can read codes directly from the TCM, which the P0700 code is a request for. Look for additional codes (like P0721 for a speed sensor or P0746 for a shift solenoid) to pinpoint the exact problem. 
• Replace faulty sensors: If a sensor like the output speed sensor is faulty, it will need to be replaced. 
• Address internal components: If the problem is not with the fluid or wiring, it may be an internal issue. This could involve replacing a bad shift solenoid, valve body, or torque converter clutch. 
• Check the TCM: The Transmission Control Module itself could be faulty and require replacement. 

This video explains how to check the transmission fluid and look for signs of damage: 42sHVAC Mechanic YouTube · Mar 13, 2024
When to see a professional

• If you're uncomfortable: Transmission work can be complex. If you are not comfortable with these steps, it's best to take the vehicle to a qualified mechanic.
• If initial fixes don't work: If checking the fluid and wiring doesn't solve the problem, a professional can perform the necessary in-depth diagnostics to avoid making expensive mistakes. 

This video discusses the importance of professional diagnosis and repair for transmission issues: 58sWeeklyToolsYouTube · Mar 24, 2024

Does P0700 mean I need a new transmission?

A failing transmission can cause the P0700 code. Mechanical wear causes excessive metal buildup in the transmission, which means that the transmission needs to be rebuilt or replaced. Metal flakes in the transmission fluid can also result in a P0700 code.