Gear Lever Y Position Circuit Intermittent
Your transmission's gear position sensor is sending an unstable signal to the engine computer, like a flickering light switch. The ECU can't reliably read which gear you're in because the electrical connection keeps dropping out.
The ECU monitors the analog voltage output from the gear lever position sensor (Y-axis), which should produce a steady signal corresponding to each gear position. When voltage drops out intermittently or fluctuates outside expected ranges, the ECU detects an intermittent circuit fault.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Sensor voltage stability | Steady 0.5-4.5V per gear position | Voltage dropouts or erratic fluctuation >0.2V |
| Signal continuity | Continuous reading without interruption | Intermittent signal loss detected multiple times |
Code P0824 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0824 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.