Parasitic Draw Check: Notes

Parasitic Draw Check

Special Tools Required

LH41 AC/DC low current clamp meter, FLULH41A**: Available through the Honda Tool and Equipment Program, 888-424-6857

NOTE:

Make sure that the aftermarket electrical accessories have been properly installed.
Parking the vehicle with the hood unlatched prevents the security system from arming, which causes excessive parasitic draw.
Leaving a keyless remote near the vehicle causes excessive parasitic draw.
Using the HDS, select BATTERY CONSUMPTION CURRENT HISTORY to check the parasitic draw.

1. Make sure the 12 volt battery is fully charged, and that all the vehicle's electrical accessories are turned off.

2. To make the security alarm system recognize that the door is closed, open the hood, and disconnect the hood latch switch 2P connector.

3. Connect the hood latch switch 2P connector terminals No. 1 and No. 2 with a jumper wire.

4. Turn the vehicle to the ON mode.

5. Turn the vehicle to the OFF (LOCK) mode.

6. Get out of the vehicle, and close all doors and tailgate securely.

7. Lock the doors with the keyless remote.

8. Make sure the individual map lights are turned off, and the security alarm system is armed.

9. Wait for at least 20 minutes.

10. Attach the LH41 AC/DC low current clamp meter (A) to the battery ground cable (B). Follow the equipment manufacturer's instructions, then measure the parasitic draw.

NOTE: If you are using a digital multimeter: go to step 11.

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Check the following items before measuring:

Set the multimeter dial to the DCA (direct current amps) range.
Plug the red test probe into the red A (Amps) jack, and plug the black test probe into the COM jack.
To avoid blowing an input fuse, start by setting the range above 10 A.

NOTE: If LH AC/DC low current clamp meter (FLULH41A) not available do the follow procedure.

12. Loosen the nut (A) on the 12 volt battery negative terminal.

NOTE: Follow the instructions exactly to avoid disconnecting the 12 volt battery ground cable terminal from the 12 volt battery negative terminal.

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13. Connect the red (+) test lead (A) to the negative terminal (B) of the 12 volt battery ground cable.

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14. Carefully slide the 12 volt battery negative terminal of the 12 volt battery ground cable upwards from the 12 volt battery negative terminal post to maintain contact and avoid disconnection. Then connect the black (-) test lead (C) to the 12 volt battery negative terminal post.

15. Disconnect the 12 volt battery negative terminal (A) of the 12 volt battery ground cable from the 12 volt battery negative terminal.

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16. Measure the parasitic draw.

NOTE: If the measured value is over the threshold, wait 20 minutes and recheck.