Can a fuse cause parasitic draw?
Can a fuse cause parasitic draw?
The fuse in and of itself cannot be the cause of the power drain. In rare cases, though, a blown fuse can mean that your car won’t start. The most common causes of parasitic drain are under hood lights, trunk lights, headlights or glove box lights that do not turn off when the door is closed.
What does IOD fuse out mean?
The IOD fuse is a device used to prevent battery discharge while the vehicle is not in use. The IOD fuse may disconnect from the TIPM to reduce the normal drainage of a vehicle’s battery depletion. Disconnection is most common during transportation and pre-delivery storage.
What is controlled by the IoD fuse?
Wish I could help you more than this, but as far as I know, the IOD fuse controls the BCM, which handles power feeds to a number of circuits, essentially replacing the under-dash fuse box. I have yet to find a secondary fuse box anywhere in my van, and there is not one mentioned in my owners manual.
When to remove IoD fuse from car battery?
A vehicle that has not been operated for approximately twenty-one days, may discharge the battery to an inadequate level. When a vehicle will not be used for twenty-one days or more (stored), remove the IOD fuse from the Integrated Power Module (IPM). This will reduce battery discharging.
Where is the IoD fuse on a minivan?
The IOD fuse is located in the IPM (Intelligent Power Module – a fancy term for the main fuse box) which is in the engine compartment right next to the battery. The IPM lid pops off by releasing two tabs indicated on the cover.
Which is one power source for the BCM?
The IOD fuse is one power source for the BCM. The BCM controls the PCI data bus. It could be anything in that circuit or the multitude of circuits controlling the accessories on the van. “Looks like your draw is in the allowable range.” .22 amps is within .015 to .025 milliamps ??? The IOD fuse is one power source for the BCM.
What happens when you pull the IoD fuse?
Pulling the IOD fuse resulted in .001 amp draw.. The battery dies overnight and has had 3 new batteries and 3 new alternators put in it in the last month by others. I did my draw check with the doors closed, key out etc.
What is controlled by the IoD fuse in a minivan?
Once you get the IPM off the car,remove all fuses and relays from the IPM and push on the 4 clips to remove the secondary cover. Under that there is another cover which will expose the actual circuit board.
Why do I have an intermittent parasitic load?
Intermittent parasitic lad can occur because of a memory device that does not power down with ignition off. With an intermittent parasitic load, battery draw can be greater than 1.0 amp. To find and intermittent problem requires that an ammeter and Disconnect Tool (J-38758) test switch be connected and left in the circuit. See Fig. 1.
How to test ammeter fuse for parasitic drain?
If in doubt about the condition of the ammeter fuse, test it with an ohmmeter prior to beginning test. An open fuse will show the same reading (00.00) as no parasitic drain. Begin test sequence with the meter installed and on the 10-amp scale. Select lower scale to read parasitic draw. TEST PROCEDURE USING TEST SWITCH 1) Turn ignition off.
