2016年11月23日 · CTS – pulled code P1378, I monitor FICM voltage all the time, usually 47.5 to 48.5. Unfortunately, I did not look at the voltage while cranking. The truck is an 03 & this is the second FICM, the first one I replaced 50K miles ago (OEM) when I thought it was the FICM & it was the HPOP, that was before I followed the experts on this Forum LOL.

2011年8月5日 · No start/hard start when accompanied with DTC P0611 (FICM Performance), P1378 (FICM System Voltage Low) and/or all eight (8) injector circuit codes. The new calibration changes the frequency of injector spool valve shuttling under certain conditions and will sound differently from previously released versions.

2016年12月13日 · Cranks but No start P0611, P1378 Jump to Latest 60K views 89 replies 3 participants last post by Iggys6 Jan 3, 2017

2019年2月25日 · I checked my codes and it came back with p1378 (fuel injection control module circuit low) and p0269 (cylinder 3 contribution/balance). I started using the truck on a daily basis about a month ago and noticed that my ficm was going from 49v down to about 47v when cold for the first few seconds but after that it was normal.

2014年4月22日 · 6.0L Power Stroke Diesel - P1378 FICM supply voltage low - Question for the gurus. Is this a FICM problem or battery, charging system error? Batteries are 2 years old. FICM output voltage varies from 47.5 to 48.0 VDC. FICM logic circuit and vehicle power read from FICM pics display voltage dropping to 10.5 before...

2017年1月29日 · 1999 to 2016 Super Duty - P1378 FICM checks good - 05 6.0 72,XXX miles. Will not start when cold (below 40ish) outside and engine is cold. Throws a P1378 code and no others (per the BullyDog Gauge Tuner that came with the truck). Checked the FICM with the voltmeter test on a morning it wouldn't start. Never dropped...

2023年11月16日 · 6.0L Power Stroke Diesel - P1378 & p0611 - I was fixing exhaust leaks. Replaced up pipes when I got done I got p1378 & p0611 codes , crank no start i replaced battery and the relay still no start when I went to delete codes they would NOT delete They literally didn?t go away even after clicking clear codes 50 times...

2012年10月19日 · 6.0L Power Stroke Diesel - Trbl code of P1378 - Have seen code of P 1378 in Insight gauge, not CEL yet, but was in July this year, Mechanic says pending trouble code not to worry about till CEL comes on.

2006年12月4日 · 1999 - 2016 Super Duty - trouble codes p-1378,U0155,u0100 - My 05,F350CC LB, keeps comming up with these codes on my edge platinun box,P-1378,U0155,u0100, Any body have a clue what it would be?Truck seems to run …

2011年3月28日 · just for an update i pulled the codes because it killed again on me. Here is a copy and paste of my previous post. Ok well for the first 100k miles i had my 6.0 i always defended it because i had 104k trouble free miles. Since then however its been one a flat bed 4 times. Just for a little...