TECHNICAL CHECK
Parasitic Current Draw Investigation
If the battery and charging system are healthy but the battery still drains while parked, aftermarket accessories and key-off current draw are investigated.
What is reviewed?
- Aftermarket accessories
- USB/phone/tracker devices
- Alarm and auxiliary modules
- Key-off current consumption of main circuits
- Circuit isolation through fuses when appropriate
Model-specific limit: Measurements are not interpreted before electronic modules have had time to enter sleep mode.