What happens when the body control module fails?

1 Answers
DeSavannah
07/29/25 6:01pm
A malfunctioning body control module can cause some electrical components on the vehicle to stop working properly, such as turn signals, windshield wipers, power windows, and door locks. For automatic transmission vehicles, specific issues may include the trunk failing to open, the key being stuck in the ignition, the P gear being locked, brake lights not illuminating (though the high-mounted brake light may still work), windshield washer fluid not spraying, and the cigarette lighter not functioning. Below is an introduction to the gears of an automatic transmission car: 1. L Gear: Low gear, which limits speed. When climbing a hill, shifting into this gear maintains high RPMs at a low gear ratio. 2. S Gear: Sport mode, where the transmission can shift freely but delays shifting to keep the engine at higher RPMs for extended periods, allowing the car to move at high RPMs in low gears for longer durations. 3. D Gear: Drive gear, used for normal forward movement of the car. 4. N Gear: Neutral gear, used during brief stops. 5. P Gear: Park gear, used when parking to engage the parking brake and prevent the car from rolling. 6. R Gear: Reverse gear, used for backing up. However, R gear should only be engaged when the vehicle is completely stopped; shifting into R while the car is still moving slowly can cause severe damage to the transmission.
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