The P2746: Intermediate Shaft Speed Sensor B Circuit Range/Performance code indicates that the intermediate shaft speed sensor ‘B’ is not performing within the expected range. This may be caused by a faulty sensor, wiring issues, or control module problems. The intermediate shaft speed sensor plays an important role in monitoring the rotation speed of the transmission shaft, and any deviation from expected values can lead to improper gear shifting.
P2746 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2746: Intermediate Shaft Speed Sensor B Circuit Range/Performance |
| Is it serious? | Yes, this code can cause erratic transmission shifting, poor vehicle performance, and may lead to long-term transmission damage if not addressed. |
| Possible causes | – Out-of-range performance of intermediate shaft speed sensor B – Faulty sensor or control module – Wiring or connector issues |
| How to diagnose? | – Check the performance of intermediate shaft speed sensor B – Inspect wiring and connectors – Verify control module functionality – Replace faulty sensor or components as needed |
P2746 Meaning
The P2746: Intermediate Shaft Speed Sensor B Circuit Range/Performance code suggests that the output from the intermediate shaft speed sensor ‘B’ is outside of the expected range, which could be due to a sensor malfunction, problems with the wiring, or an issue with the control module interpreting the data. If the sensor sends incorrect speed readings, the transmission may shift improperly, causing drivability issues or excessive wear.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to identify any other related codes. Additional codes can help pinpoint related issues that may be contributing to the sensor’s out-of-range performance. | OBD-II Scanner |
| Inspect Intermediate Shaft Speed Sensor B | Visually inspect sensor ‘B’ for any signs of damage or wear. Ensure that the sensor is properly mounted and is free from obstructions that could affect its readings. | Flashlight, Safety Gloves |
| Check Performance of Intermediate Shaft Speed Sensor B | Use a multimeter or diagnostic tool to evaluate the performance of the speed sensor ‘B’. Compare the sensor output to manufacturer specifications to determine if it is operating correctly and within the expected range. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for any signs of wear, disconnections, or corrosion. Loose or damaged wiring can lead to incorrect or intermittent readings from the sensor. | Flashlight, Multimeter |
| Verify Control Module Functionality | Use a diagnostic tool to verify that the control module is receiving the correct signals from sensor ‘B’. A faulty control module could misinterpret the sensor data, causing the sensor’s performance to appear out of range. | Diagnostic Tool, Manufacturer Software |
| Replace Faulty Sensor or Components as Needed | If the sensor, wiring, or control module is found to be faulty, replace the defective components to restore normal sensor operation and accurate data transmission. | Replacement Sensor, Wiring Repair Kit |
| Clear the Code and Test Drive | After making repairs, use an OBD-II scanner to clear the P2746 code. Conduct a test drive to ensure that the transmission operates smoothly and that the sensor provides accurate readings. | OBD-II Scanner |
| Recheck for Codes | Perform a final scan to verify that the P2746 code has not returned. If it reappears, further diagnostics may be required to determine the cause. | OBD-II Scanner |
Free PDF: How to choose OBD2 scanner
I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.
✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners
PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide.
Just tell me where to send it.
Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)