Invalid Data Received From Body Control Module
What it means
The body control module (BCM) controls lighting, locks, wipers and more, and shares their status with other modules over the network. This code means another module is receiving its messages, but the content is invalid. The cause is usually a switch or sensor connected to it, its programming, or low voltage.
Symptoms4
- Warning lights or confusing messages on the cluster.
- Abnormal behavior of lights, locks, wipers or door indicators.
- On some vehicles, starting problems if the module is part of the anti-theft system.
- Intermittent loss of some convenience features.
Possible causes6
- A faulty switch or sensor whose status the module shares, such as the ignition switch, door switches or light switch, with its own code in the module.
- Low battery voltage or a poor ground.
- Incorrect programming or coding of the module after replacement or an update.
- Water in the module or its connectors, such as from a windshield or sunroof leak on some vehicles.
- Intermittent network wiring fault.
- Internal module failure.
How to diagnose5
- Read the body control module codes first and fix any switch or circuit codes there.
- Watch the module's live data on a scan tool and compare it with the actual state of the doors, lights and ignition switch.
- Measure battery voltage and inspect the ground points.
- Inspect the module location and its connectors for water or corrosion.
- Check whether the module was replaced or updated recently and confirm its coding.
How to fix6
- Repair the switch or circuit stored in the module.
- Charge or replace the battery and repair the grounds.
- Dry the module, clean the connectors and fix the water leak.
- Reprogram or recode the module with the correct version.
- Replace and program the module if proven faulty.
- Clear the codes and confirm the code does not return.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The cost is low for a switch, ground or coding fix, and reaches the upper end if water has damaged the module and it must be replaced and programmed.
Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026
Frequently asked questions
Why are unrelated functions affected at the same time?
The body control module collects the status of many switches and sensors and shares it with other modules. If its data is invalid, several functions are affected at once.
Is water a common cause of this code?
Yes, on some vehicles, because the module may sit near areas where water leaks in, and corrosion in its connectors corrupts the data.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
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