How do you replace the HFL in an Acura MDX?

Closeup of HFL module and green connector. If you are replacing the HFL, pull it out and install the new unit in its place and reconnect the connector. Reinstall the connectors for the rear center console trim piece and push it back into the clips until it locks into place. Figure 3.

When to disconnect HFL battery from Acura battery?

There is a simpler way, there are two hot wires once the ignition is on into the HFL unit. There is a white wire that stays hot and the unit is supposed to shut down in 10 min after the ignition is off, but the unit does not shot down. There is an ignition connected wire as well, nothing needs to be done to this one.

Where does the power come from on an Acura HFL?

There is an ignition connected wire as well, nothing needs to be done to this one. Go to a sound specialist shop and them have then splice into the white wire (on 2005 RL) a relay or the always hot wire that goes into the HFL connector, a relay that gets it power from the ignition instead of the battery..

How much does it cost to replace an Acura HandsFreeLink?

The plaintiff says she and other Acura owners are left with the choice of replacing the HandsFreeLink units at a cost of at least $1,000 each or disconnecting the HandsFreeLink units from the vehicles. Even if an Acura owner chooses to replace the unit, the lawsuit says there is no guarantee the new unit won’t get stuck in the “on” position.

Do you need to replace your HFL module?

If you need to replace your HFL module or simply want to disconnect it, keep reading and we’ll walk you through the process of removing it. To test your HFL to see if it is the cause of your battery drain issue, switch your multimeter to DC amps.

Can a faulty HFL module drain the battery?

While HFL provides a host of useful options, including steering wheel controls and cell phone functionality, it also creates a parasitic draw on your battery by running even when the car is off. This draw is not enough to cause any issues when the module is in good shape, but a faulty module can draw enough juice to repeatedly drain the battery.