Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Body Control Module Inspection
Preconditions
NOTE: This procedure can be done before any other inspections are completed because this test procedure includes all of the following inspection items. However, if this test fails, it will be necessary to continue with each inspection item individually to determine which item failed.
- External circuit is normal
Test Procedure
- Preparation
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Middle interior LF antenna 2P connector: disconnected
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- Procedure
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Perform the inspection according to the following table.
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(Disconnected)Middle interior LF antenna 2P connectorfemale terminals
IG Mode
Normal Conditions
Module internal circuit inspection
ON*1
Voltage
*1: If the matter whether the vehicle mode ON or OFF (LOCK) because of the permanent power supply.
Results
- If it is abnormal, there is a problem with the body control module.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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