Parasitic Draw Inspection

Verify that the ignition is switched off (lock) and all doors, the hood and the liftgate are closed.
If using a series-type ammeter, continue to Step 3. If using the GR8-1291 Battery Maintenance Station with the inductive amp clamp, skip to Step 5.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
CAUTION:
- Operating electrical loads while the parasitic draw is being measured can damage a series-type ammeter.
Connect the meter between the negative battery terminal and negative battery cable. Proceed to Step 9.
Select the DMM icon from the main menu.
Select the DC Ammeter.
Select the 70 AMP MAX range. (measuring milliamps)
Connect the amp clamp to the negative battery cable.
Monitor the current draw.
NOTE:
- If the battery is not left undisturbed for 10 min or more, the tester will indicate a high value (approx. 300 mA).
- If the ignition or any electrical accessory is operated after the tester is connected, the battery must be left undisturbed for 40 min or more from that point.
- For vehicles with the immobilizer system, the system periodically shifts synchronization of the security indicator light flashing. There fore, 65 mA (0.1 s) current draw is supplied when the security indicator light is illuminated, and 40 mA (2 s)current draw is supplied when the security indicator light is not illuminated. In addition, the measuring instrument, which shows the average value, indicates around 55 mA.
Leave the vehicle electrical system undisturbed for 40 min or more, and then measure the parasitic draw.
- If not within specification, measure the parasitic draw while removing the fuses one by one from the inside of the main fuse block and the inside of the fuse block.
- Inspect and repair wiring harnesses and connectors of the fuse where the current draw has decreased.
Parasitic draw (When the ignition is off (lock), all doors and the hood are closed.)

40-65 mA