Jul 21, 2011 · What do heck does Trouble Code P0603 (Internal Circuit Mod. KAM error) mean? Thanks, Griz

Dec 31, 2009 · I started my truck up this morning.... and out of the blue it threw a CEL with code # P0603: Power Interruption on (KAPWR) circuit. I tried to reset this code a couple of times but it …

Oct 4, 2008 · This could be caused by a module disconnect, programming, low battery, disconnected battery or a wiring concern that causes KAM power to be removed. Like most …

Oct 13, 2023 · KeepAliveMemory=KAM=P0603 it means the power was interupted to the PCM at some point. You can't cause this code by pressing the accellerator pedal. The code causes no …

Jun 26, 2017 · My Excursion 7.3 is running in limp mode, the problem is a P1280 code, and P0603. I think the is something with the wiring or the PCM. The problem is that when driving, …

Jun 7, 2005 · I have a 01 powerstroke, yesterday I ran a diagnostics check with the Superchips MAX Micro Tuner and it gave me this code P0603 - Internal Ctrl Mod KAM...

Jul 21, 2009 · The P0603 is because you installed the tune. You'll get the same thing if you disconnect power to the PCM, and is not a problem. The P1211 means your HPOP can't keep …

Aug 21, 2023 · P0603 indicates the PCM has experienced a power interrupt in the KAPWR circuit. Post pics of the battery terminals. P0470/472/478 relate to the EBP, and have contradictory …

Aug 19, 2009 · P0603 When the engine starts up the check engine light turns off and the AE scanner reads: At Idle: The Injector Control Pressure averages around the 580 PSI range The …

Jan 9, 2025 · The only code I am getting on the OB2 test is a P0603 power interruption on KAPWR circuit. Last thing when it cranks, it doesn't sound normal instead of the what I would …