CID 1779 FMI 06
Conditions Which Generate This Code:
This diagnostic code indicates that the Electronic Control Module (ECM) has detected a short circuit or high current condition in the solenoid for the fuel rail pump.
System Response:
If equipped, the warning light will come on and the ECM will log the diagnostic code.
An electrical fault may prevent the provision of pressure to the fuel rail. This may result in the loss of fuel injection. If the solenoid for the fuel rail pump fails, it is likely that fuel will not be pumped into the fuel rail. The engine will stop or the engine will not start.
Test Step 1. Perform the following diagnostic procedure: Fuel Rail Pump Solenoid - Test
Results:
- OK - STOP
Caterpillar Information System:
C4.4 and C6.6 Engines for Caterpillar Built Machines Engine Speed/Timing Sensor Circuit - Test
C27 and C32 Generator Set Engines Vibration Damper and Pulley
C32 Marine and Auxiliary Marine Engines Valve Mechanism Cover - Remove and Install
C32 Marine and Auxiliary Marine Engines Housing (Rear) - Install
345C MHPU Mobile Hydraulic Power Unit Engine Supplement Muffler - Remove and Install
C32 Marine and Auxiliary Marine Engines Housing (Rear) - Remove
C13 Engine for Combat and Tactical Vehicles Engine Design
C-12 Generator Set Engine CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to ground
G3408C and G3412C Engines Inlet and Exhaust Valve Guides - Remove and Install - New Taller Head
C4.4 and C6.6 Industrial Engines and Engines for Caterpillar Built Machines CID 1779 FMI 05
C32 Marine and Auxiliary Marine Engines Housing (Front) - Install
C4.4 and C6.6 Industrial Engines and Engines for Caterpillar Built Machines CID 1743 FMI 02
3412E and C30 Marine Engines Fuel System Water Separator - Drain
C32 Marine Engines Valve Mechanism Cover Base - Remove and Install
C13, C15, and C18 Tier 4 Final Engines Valve Mechanism
C32 Marine Engines Rocker Arm and Shaft - Remove
C9-XQ300 Rental Generator Set Engine Speed/Timing Sensors - Check/Clean/Calibrate
C32 Marine Engines Rocker Arm and Shaft - Install
345C MHPU Mobile Hydraulic Power Unit Engine Supplement Exhaust Manifold - Remove and Install
C11 and C13 On-Highway Engines Turbocharger
C11 and C13 On-Highway Engines Air Lines
C27 and C32 Generator Set Engines Flywheel
C11 and C13 On-Highway Engines Camshaft
C15 Petroleum Generator Set Engines Alternator and Regulator