The P0906: Gate Select Position Circuit Low refers to a problem where the voltage in the gate select position circuit is too low. This can affect the transmission’s ability to detect and select gears properly, possibly leading to drivability issues.
P0906 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0906: Gate Select Position Circuit Low |
| Is it serious? | Yes, this can cause improper gear selection, leading to drivability problems. |
| Possible causes | – Low voltage in the gate select position circuit – Faulty gate select sensor or actuator – Wiring or connector issues |
| How to diagnose? | – Check the circuit for low voltage – Inspect wiring and connectors – Replace faulty components if needed |
P0906 Meaning
The P0906 code indicates that the gate select position circuit is registering a lower-than-expected voltage. This could be caused by issues with the sensor, actuator, or wiring problems. When the voltage is too low, it can prevent the transmission from properly detecting and selecting gears, leading to erratic shifting or failure to engage the correct gear.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any other related codes to further diagnose the issue. | OBD-II Scanner |
| Inspect Wiring and Connectors | Visually inspect wiring and connectors for signs of damage, corrosion, or disconnections related to the gate select position circuit. | Flashlight, Multimeter |
| Check the Circuit for Low Voltage | Use a multimeter to measure the voltage in the gate select position circuit. Compare the voltage to the manufacturer’s specifications. | Multimeter, Vehicle Manual |
| Test the Gate Select Sensor or Actuator | Use a diagnostic tool to check the functionality of the gate select sensor or actuator and replace if necessary. | Diagnostic Tool, Replacement Sensor/Actuator |
| Replace Faulty Components | Replace any faulty wiring, connectors, or the gate select sensor/actuator as needed. | Replacement parts, Tools |
| Clear Code and Test Drive | After making necessary repairs, clear the code and perform a test drive to verify the problem is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the vehicle after the test drive to confirm that the P0906 code does not return. | 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