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.
Circuit Description
LDCM has 2 main power feeds (high and low), and one main ground. Low power feed (battery No. 1) is used to provide power for LDCM logic and internal driver operation. High power feed (battery No. 2) is used to provide power for systems that draw greater amounts of current (motors, light, etc.). For most functions, LDCM will operate properly when vehicle system voltage is 9.0-16.0 volts. LDCM also monitors voltage level at battery No. 1 and battery No. 2 circuits and can determine if voltage level received is out of range. If voltage is out of range in either circuit, a malfunction is present and DTC will set.
DTC B2284 will set if LDCM detects battery No. 2 voltage range less than 8.5 volts or greater than 16.3 volts. This condition must exist for 2 seconds. DTC B2284 will store as a history code in LDCM memory. No driver warning will be displayed.
Under all fault conditions, DTC B2284 will clear automatically when LDCM detects battery No. 2 voltage range is 8.5-16.3 volts for longer than 2 seconds. Current and history DTCs can be cleared using scan tool or on-board diagnostics.
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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.