The P0759: Shift Solenoid B Intermittent refers to an issue where the operation of shift solenoid “B” is inconsistent, leading to erratic transmission behavior and shifting problems. This fault could be caused by a failing solenoid, wiring issues, or loose connections.
P0759 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0759: Shift Solenoid B Intermittent |
| Is it serious? | Yes, intermittent shifting can affect drivability and potentially cause transmission damage. |
| Possible causes | – Intermittent issues with shift solenoid B – Faulty solenoid – Wiring or connection issues |
| How to diagnose? | – Test solenoid B for intermittent faults – Inspect wiring and connectors – Replace faulty solenoid if necessary |
P0759 Meaning
The P0759 code indicates that shift solenoid “B” is experiencing intermittent functionality. The shift solenoid regulates transmission fluid to control gear shifting, and intermittent operation can result in erratic shifting, poor performance, or hesitation while shifting. The issue may arise from faulty wiring, loose connections, or a malfunctioning solenoid.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any other transmission-related codes that might provide further insight into the problem. | OBD-II Scanner |
| Test Solenoid B for Intermittent Faults | Use a multimeter or diagnostic tool to test solenoid B for electrical continuity and proper function. Look for irregular or inconsistent performance. | Multimeter, Diagnostic Scanner |
| Inspect Wiring and Connectors | Inspect the wiring and connectors leading to solenoid B for signs of wear, damage, or loose connections that could cause intermittent faults. | Flashlight, Multimeter, Safety Gloves |
| Check Transmission Fluid | Ensure the transmission fluid level is correct and the fluid is clean, as low or dirty fluid can affect solenoid performance. | Transmission Fluid Tester, Dipstick |
| Replace Faulty Solenoid | If solenoid B is found to have intermittent functionality, replace it with a new solenoid according to manufacturer specifications. | Replacement Parts, Wrenches, Screwdrivers |
| Clear the Code and Test Drive | After replacing the solenoid, clear the code using an OBD-II scanner and test drive the vehicle to ensure the issue is resolved. | OBD-II Scanner |
| Recheck for Codes | After the test drive, rescan the vehicle to ensure the P0759 code has not returned. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko