Can a bad relay drain a battery?

A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off. This will place a parasitic drain on the battery, which will eventually cause it to go dead.

Can a faulty ignition switch cause battery drain?

This causes the fuel to work and gives the power your car needs to run. A typical problem with the ignition switch is when your car fails to start. This sign forces you to keep making attempts to turn the engine, draining and, therefore, killing your battery.

Why does my Acura MDX battery keep draining?

Battery would die if car sat for several days, then would die after 2 or 3 days, then battery starting dying overnight. My mechanic isolated the parasitic draw to under dash fuses 5 and 7. Brought car to Acura dealer two times. Car sat for a week and battery never drained.

What was the problem with my 2008 Acura?

Acura Repair This answer was rated: 2008 MDX battery drain issue. Went through 4 or 5 batteries… 2008 MDX battery drain… 2008 MDX battery drain issue. Went through 4 or 5 batteries in 18 months. Battery would die if car sat for several days, then would die after 2 or 3 days, then battery starting dying overnight.

Where is the battery drain plug on an Acura TSX?

It is indeed located on the passenger side behind the side panel! In order to get to it first you need to pry off floor sill trim, and then the kick panel. It’s enough just to undo bottom clips and you have enough room to get in and pull a plug from HFL unit.

Can a 15A fuse increase the battery drain?

I pulled the 15A fuse for the radio from the under-dash box and it actually made the drain INCREASE, but by only 0.01A (to 0.07). I guess I’ll just start pulling everything till it goes away.

Why is my Acura battery draining so fast?

The easiest way to narrow the problem to the HFL module is to gain access to it and just touch it. If it is in permanently paired mode, the module will be warm to the touch. If yours is cool, look elsewhere for the cause of your battery drain. If the HFL module is warm, you have four options:

I pulled the 15A fuse for the radio from the under-dash box and it actually made the drain INCREASE, but by only 0.01A (to 0.07). I guess I’ll just start pulling everything till it goes away.

Where is the battery located on an Acura?

Depending on the year and model, the handsfree link module can be located at the rear of the console or in the overhead switches behind the sunroof switches. Even though a failed handsfree module is the most common failure that causes a dead battery, there can be other causes.

Where is the drain fuse on an Integra?

I managed to get the drain down to 0.01A by pulling fuse 3 in the under-dash box. Items connected to it are (according to Helms) the Integrated control unit (what is this? gotta look it up in helms…), ceiling light, power antenna motor, and Data link connector (DLC).