What should the voltage be on a FICM screw?
What should the voltage be on a FICM screw?
If voltage stays at or above 45-46 volts, the FICM is fine. Abnormally low battery voltage can give a false low FICM voltage reading, so make sure your batteries are good. The procedure is the same for FICM’s with 7 screws, except that you will be checking voltage at a different screw, as shown in this picture.
What should my FICM reading be for my car?
Next start the engine and measure the voltage with the engine running. If voltage stays at or above 45-46 volts, the FICM is fine. Abnormally low battery voltage can give a false low FICM voltage reading, so make sure your batteries are good.
What are the codes for shorted coils in FICM?
Open coils produce low current which sets the injector circuit low codes (ie. P0261, P0264, … , P0282). Shorted coils (side shorts) or short to grounds produce high current which sets the injector circuit high codes (ie. P0262, P0265, …, P0283).
How to check the FICM of a battery?
1. FICM Voltage Check Before doing the FICM check make sure battery and charging systems are working and proper voltage (greater than 12.5 volts). Remove Glow Plug Control Module (GPCM) power wire from passenger side battery. This will set a GPCM code. This will keep the batteries from draining excessively while checking FICM.
What should the voltage be on the FICM?
The voltage should be in the 46-48 volt range with the engine running. If the voltage drops lower, the FICM needs replaced. If you do not have a scan tool, you can test the FICM by removing the small cover from the top of it and using a regular multi-meter.
Open coils produce low current which sets the injector circuit low codes (ie. P0261, P0264, … , P0282). Shorted coils (side shorts) or short to grounds produce high current which sets the injector circuit high codes (ie. P0262, P0265, …, P0283).
How to diagnose a 6.0 power stroke FICM?
0 PowerStroke FICM OBDII FAULT CODE DIAGNOSTICS. The below fault codes may help point you in the right direction when diagnosing the 6.0 Power Stroke FICM: P0261 Cylinder 1 Injector Circuit Low. P0264 Cylinder 2 Injector Circuit Low. P0267 Cylinder 3 Injector Circuit Low. P0270 Cylinder 4 Injector Circuit Low. P0273 Cylinder 5 Injector Circuit Low
How many FICM error codes are there on 2003.25?
This means an injector short to ground on the low side could produce four different cylinder error codes. On 2003.25 (1837127C4 FICMs) there are individual low side drivers for each injector. This means a low side failure would result in a single injector error code.
