Check the wiring and connections associated with the interior lights, alarm system, and electric windows. Ensure there are no loose connections, broken wires, or damaged insulation that may be causing power interruption or grounding issues.
2. Door Switches:
Inspect the door switches that trigger the interior lights and window operation. Make sure the switches are functioning correctly, and the mechanisms are not obstructed or damaged.
3. Alarm System Module:
The alarm system module may also be responsible for controlling the interior lights and windows. Verify that the module is receiving power and communicating properly with the other systems.
4. Ground Connections:
Check the ground connections throughout the vehicle, paying particular attention to those related to the affected systems. Ensure that these connections are clean and tightly secured.
5. Electronic Control Module (ECM):
The ECM or Engine Control Module may also have some control over the interior lights and windows. Check the ECM for any error codes related to these systems.
6. Wiring Harness:
Inspect the wiring harness for any signs of damage or wear that may be causing electrical issues.
7. Relay:
There might be a relay that controls the interior lights, alarm, and electric windows. Check the relay and ensure it's functioning correctly.
8. Central Control Module:
The central control module might control the interior lights, alarm, and electric windows. Check if there's any issue with the central control module.
