Dodge Grand Caravan Vehicle Speed Sensor Guide (2012-2020)
Experiencing a jerky transmission or an erratic speedometer? This guide is for you.
- A bad speed sensor can mimic a major transmission failure; symptoms include harsh shifting and an erratic speedometer.
- Your van has separate input and output transmission sensors; diagnose the problem before buying to ensure you get the right one.
- This is a DIY-friendly repair that is accessible from the driver's side wheel well and requires basic tools.
- Ignoring a bad sensor can lead to unsafe driving conditions, including the transmission entering "limp mode" unexpectedly.
Is a Bad Speed Sensor Causing Your Van's Problems?
A failing vehicle speed sensor on a Dodge Grand Caravan can create problems that seem much worse than they are. Many owners mistake the symptoms for a major transmission failure. Before you worry about a costly transmission rebuild, check your speed sensors. The most common signs of a bad transmission speed sensor are an erratic speedometer, cruise control not working, and harsh or delayed shifting. 🎬 Watch: 5 common symptoms of a bad speed sensor In some cases, the transmission may go into "limp mode," where it gets stuck in a single gear (usually second) to prevent further damage.
🎬 See what happens when your van enters limp modeDon't Confuse Transmission and Wheel Speed Sensors
The 2012-2020 Grand Caravan uses both transmission speed sensors (input/output) and wheel speed sensors (ABS sensors). While they all measure speed, they serve different primary systems. Transmission speed sensor issues mainly affect shifting and the speedometer. Bad wheel speed sensors will typically trigger the ABS and traction control warning lights. This guide focuses on the transmission speed sensors, but a faulty wheel speed sensor can sometimes cause similar issues.
Choosing the Right Aftermarket Speed Sensor
For a part like a speed sensor, you don't always need to pay the high price for an OEM (Original Equipment Manufacturer) part from the dealer. A quality aftermarket sensor can perform just as well. The key is to choose a reputable brand.
- Premium Aftermarket (e.g., Standard Ignition, Delphi): Brands like Standard Ignition (SMP) are often trusted by professional mechanics and are known for producing parts that meet or exceed OEM quality. They are a reliable choice for a durable repair.
- Standard Aftermarket (e.g., Walker Products, Holstein): These brands offer a good balance of quality and value. They are designed as direct-fit replacements and are a popular choice for DIY repairs.
- Economy Brands (e.g., Crown Automotive, various store brands): These are the most budget-friendly options. While they can be a good value, some user reviews suggest a higher chance of premature failure compared to premium brands. They may be suitable for an older, higher-mileage vehicle or if budget is the primary concern.
Pro Tip: Input vs. Output Sensor
The 62TE transmission in your Grand Caravan has both an input and an output speed sensor. They are not interchangeable. Before ordering, it's best to get the diagnostic trouble codes (DTCs) read from your van's computer. This will help you pinpoint which sensor has failed so you can order the correct part the first time.
Cost to Replace a Dodge Grand Caravan Speed Sensor
Replacing a speed sensor is a relatively inexpensive repair. The parts are affordable, and the labor is straightforward for a mechanic. Below is a general cost estimate.
| Part Type | Estimated Part Cost |
|---|---|
| New OEM | $50 - $75 |
| New Aftermarket | $27 - $43 |
| Shop Labor | $61 - $95 |
Frequently Asked Questions (FAQ)
Where are the speed sensors located on a 2012-2020 Grand Caravan?
The input and output transmission speed sensors are located on the outside of the 62TE automatic transmission, typically near the left front wheel well area. They are held in by a single bolt and have an electrical connector, making them accessible for replacement. The wheel speed (ABS) sensors are located at each wheel hub.
Can I replace a speed sensor myself?
Yes, this is a DIY-feasible job for many home mechanics. The sensors are usually held in by a single bolt and an electrical clip. Accessing them may require removing the driver's side front wheel. The most important steps are to ensure you have the correct replacement sensor (input vs. output) and to clean the mounting area before installing the new part.
What happens if I ignore a bad speed sensor?
Ignoring a bad speed sensor can lead to continued poor shifting, which puts extra stress on your transmission. You will also have an unreliable speedometer and no cruise control. In some cases, the van may suddenly go into limp mode, which can be a safety hazard while driving. It's best to replace a faulty sensor as soon as possible to avoid these issues.
Are there any recalls for the speed sensor on my Grand Caravan?
As of now, there are no specific recalls for the vehicle speed sensors on the 2012-2020 Dodge Grand Caravan. However, there was a recall (NHTSA 16V-461) for some 2016 models related to the transaxle oil pump, which could cause a loss of motive power, a symptom that can sometimes be confused with a sensor issue.
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Technical Specifications
OEM Part Numbers: 68128181AA 68128181AB 68128181AC 7B0927803C 7B0927803D
The 2012-2020 Dodge Grand Caravan is equipped with a 62TE 6-speed automatic transmission. It uses two primary transmission speed sensors: an input speed sensor and an output speed sensor. These are typically magnetic hall-effect sensors that generate a signal as a toothed wheel spins past them.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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