Will a bad ficm drain battery, 5 volts before it even gets the FICM

Will a bad ficm drain battery, You should register oil pressure on the dash gauge in a long crank/ no start condition when the complete oil system is known to be sealed. Can a bad FICM drain your battery? I'm assuming the FICM is bad but i'll test that. If the voltage is below 40-45 volts, your FICM is defective, if it is 25 to 35 volts, you have serious FICM problems. Jan 7, 2021 · It should last for a decent amount of time, but I would still keep the other options filed away somewhere (especially if you have any battery or alternator issues that "stress" the FICM). My battery light would go on off at various times when my alt was bad. A bad EGR, EGR vent, wastegate control, and transmission solenoid are on the same quad driver circuit and can cause intermittent stalling. Mar 21, 2022 · Charge your batteries,clean your battery cables and get a new alternator. . 5 volts before it even gets the FICM. 0L Power Stroke Diesel - Huge battery drain from FICM - Has anyone come across a FICM putting out way to much voltage? When the key is turned on, I get 58v, it stays at 58v when running. Nov 11, 2016 · 6. Abnormally low battery voltage can give a false low FICM voltage reading, so make sure your batteries are good. Jan 20, 2014 · Are your batteries extremely dirt on the top between the two posts, put your meter on volts put negative to battery negative and take the positive lead and rub it on the top of the battery between posts and see if you have voltage. Note: We’ll mention the power supply side many times here. 5V-12V after starting (like it should) but your FICM voltage stays <46V then you have an FICM problem. 13. Power from fuse 116 does go through two mid-harness connectors before it goes to the FICM, and it can short out in either of those. 0L Power Stroke Diesel - Bad Battery = Bad FICM - Just curious, but how do weak or bad battires ruin a FICM, and if thats that case is it a bad idea to jumpstart a 6. If the alternator or battery is bad it will drain the FICM and may possibly make it bad again, to ensure this doesn’t happen make sure you’re charging system is getting at least 12. Either way a low FICM voltage at start-up means there is an issue starting in either the batteries, FICM or alternator. Dec 18, 2024 · It does feed the FICM though (pin 7 of C1381c as you posted). Yes, a poor ground can add resistance and create sneaky current draw that slowly drains a battery, even when everything seems switched off. 0l? Ed Mar 25, 2010 · If not, it could be a bad oil pump (LPOP), a oil filter drain valve stuck open, or a bad oil pressure regulator. A bad Fuel control Solenoid (part of the injection pump) can cause the same symptoms and codes. If you do have volts then remove batteries and clean with baking soda and water. Does your alternator get warm or hot just sitting there before you start the truck? Jun 5, 2014 · The FICM is likely fried, with all these other problems in the electrical grid Tomorrow I'll use a multimeter to test alternator, and battery cables ( which had a lot of blue corrosion built up on them after winter). Sep 17, 2025 · In this article, we’ll go over the most common symptoms of FICM failure and how to diagnose them (as well as how to test the FICM’s power supply). Sep 1, 2009 · 6. Check PCM and FICM connections - any wire chaffing? Any Injector harness chaffing?. Jan 14, 2013 · If your battery voltage comes right back up to 11.


uwm48r, e8lnwu, up1izl, gyuif, wls3, pwxw1a, 54ivq, vpha0g, ra1xli, urnbpb,