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Have You Faced Battery Drain Issues in the Toyota Hilux Even When the Car Is Off?

Have You Faced Battery Drain Issues in the Toyota Hilux Even When the Car Is Off?

Some Hilux owners report battery drain even when the vehicle is not in use. Have you experienced this issue, and what was the cause?
Sirat Ul Jinan asked on 11 Feb 2025 14:58:58 pm
1 Answer
17 views |
Car Mechanic Expert - on 11 Feb 2025 15:22:06 pm
Yes! Many Hilux owners in Pakistan report battery drain issues. Common causes include:

🔴 Parasitic Draw – Electronics like alarms, GPS trackers, o r radios drain power when the car is off.
🔴 Faulty Wiring – A short circuit o r damaged wire can slowly drain the battery.
🔴 Bad Alternator Diode – A failing diode allows current to flow backward, draining the battery overnight.
🔴 Glove Box o r Trunk Light Staying On – If a switch fails, lights may stay on unnoticed.

How to Test for Parasitic Drain:

Disconnect the negative battery terminal.
Use a multimeter in amperage mode and check for current draw.
If the reading is above 50mA, theres excessive drain.

Solution: A mechanic can identify the faulty circuit and fix the issue.
 

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