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1. Faulty Ignition Switch: The ignition switch may be defective, causing it to remain in the "on" position even when the key is removed.
2. Wiring Issue: There might be a short or malfunction in the wiring harness connected to the ignition system, preventing the ignition from turning off.
3. Faulty Neutral Safety Switch: If your vehicle has a manual transmission, the neutral safety switch ensures the ignition can only be turned to the "on" position when the transmission is in neutral. A faulty switch can cause the ignition to remain on, even when in gear.
4. Stuck Starter Relay: The starter relay is responsible for supplying power to the starter motor. If the relay becomes stuck in the "on" position, it can cause the ignition to stay on.
5. Key Cylinder Issues: In some cases, the key cylinder itself may be worn or damaged, allowing the key to be removed while the ignition remains on.
Interior lights staying on:
The interior lights remaining on even with the ignition turned off and the key out can be due to several reasons:
1. Faulty Door Switch: The door switches detect when a door is opened and trigger the interior lights to turn on. A faulty switch may remain stuck in the "on" position, causing the lights to stay on.
2. Short Circuit: A short circuit in the electrical system can bypass the switch and cause the lights to stay on.
3. Faulty Light Switch: The interior light switch itself might be malfunctioning, causing the lights to remain on.
4. Aftermarket Modifications: If your vehicle has any aftermarket electrical modifications, they might interfere with the normal operation of the interior lights.
To resolve these issues, it is advisable to have the vehicle inspected by a qualified mechanic or automotive electrician to diagnose and repair the underlying cause
