Fault Condition: If the Engine Management System (EMS) Module detects a fault in the electrical circuit while attempting to operate the Fuel Injector Unit, the Electronic Malfunction Lamp (EML) will turn ON and code SID 3 will set. Possible repairs: Turn the ignition switch OFF first. 1) Disconnect the harness electrical connector from Fuel Injector Unit #3. Check for continuity between the pins 1 and 2 of the Fuel Injector Unit #3. If the resistance is NOT between 0.9-5.2 Ohms at 68°F (20°C) or 1.5-5.8 Ohms at 218°F (103°C), Fuel Injector #3 is faulty and must be replaced.2) Disconnect the...

Fault Condition: If the Engine Management System (EMS) Module detects a fault in the electrical circuit while attempting to operate the Fuel Injector Unit, the Electronic Malfunction Lamp (EML) will turn ON and code SID 3 will set. Possible repairs: Turn the ignition switch OFF first. 1) Disconnect the harness electrical connector from Fuel Injector Unit #3. Check for continuity between the pins 1 and 2 of the Fuel Injector Unit #3. If the resistance is NOT between 0.9-5.2 Ohms at 68°F (20°C) or 1.5-5.8 Ohms at 218°F (103°C), Fuel Injector #3 is faulty and must be replaced.2) Disconnect the...

Fault Condition: When the Engine Management System (EMS) Module detects there is a short to voltage in the cooling fan control circuit, FMI 3 will set and the fan will operate continuously. If a customer complains that the fan clutch does not disengage and code SID 33 has not been logged in the EMS Module, the problem may be due to a mechanical failure in the chassis air system. Possible repairs: Warning: The fan can engage without warning. Hands, arms and personal items can easily be entangled in the belts or fan blades. Keep arms, hair, clothing, jewelry, etc. clear...

Fault Condition: When the Engine Management System (EMS) Module detects there is a short to voltage in the cooling fan control circuit. When there is a short to ground, FMI 4 will set and the fan will not operate Note: If code SID 33 sets with FMI 4, there may be additional active codes. If this is the case, follow the diagnostic procedures for the other codes first, then check to make sure code SID 33 is no longer active. If a customer complains that the fan clutch does not disengage and code SID 33 has not been logged in...

Fault Condition: When the Engine Management System (EMS) Module detects there is a short to voltage in the cooling fan control circuit. If there is an open circuit, FMI 5 will be set and the fan will operate continuously. If a customer complains that the fan clutch does not disengage and code SID 33 has not been logged in the EMS Module, the problem may be due to a mechanical failure in the chassis air system. Possible repairs: Warning: The fan can engage without warning. Hands, arms and personal items can easily be entangled in the belts or fan blades....