Why Is My Suzuki Bolan’s Battery Draining After Installing Power Locks?

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Why Is My Suzuki Bolan’s Battery Draining After Installing Power Locks?

Ever since I got central locking installed in my Bolan, the battery drains if the van sits for a day o r two. Could the control unit o r door lock relay be constantly drawing power even when the van is off?

Gari Specialist asked on 11 Apr 2025 15:41:53 pm

1 Answer

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Gari Master - on 11 Apr 2025 15:46:12 pm

Aftermarket systems, especially cheap ones, are not always wired correctly, and may draw power constantly, even when the ignition is off. Causes include:

Improperly installed control module drawing standby current

Faulty relays stuck in the on position

Remote receiver staying active 24/7

To fix it, ask an electrician to check the quiescent current draw using a multimeter. Ideally, when the car is off, the system should draw less than 50mA. Anything more is likely to drain a small Bolan battery within 1–2 days.