KIT-PLATE 2422176 - Caterpillar

Table 1
Related Service Manuals    
Title     Form Number    
SPECIFICATIONS 140M Series 2 / 160M Series 2 "ALL WHEEL DRIVE SPECIFICATIONS"     KENR8418    
D&A MACHINE SYSTEM 140M Series 2 / 160M Series 2 "MACHINE SYSTEM D & A"     KENR8897    
ELECTRICAL SCHEMATIC 140M Series 2 / 160M Series 2 "MOTOR GRADER ELECTRICAL SYSTEM"     KENR9046    
HYDRAULIC SCHEMATIC 140M Series 2 / 160M Series 2 "MOTOR GRADER HYDRAULIC SYSTEM"     KENR9047    
OMM 140M Series 2 / 160M Series 2 "MOTOR GRADERS"     SEBU8490    
SPECIFICATIONS 160M Series 2 / 120M Series 2 / 140M Series 2 / 12M Series 2 / "ALL WHEEL DRIVE SPECIFICATIONS"     KENR8480    
D&A MACHINE SYSTEM 12M Series 2 / 120M Series 2 "MACHINE SYSTEM D & A"     KENR9465    
ELECTRICAL SCHEMATIC 12M Series 2 / 120M Series 2 "MOTOR GRADER ELECTRICAL SYSTEM"     KENR9044    
HYDRAULIC SCHEMATIC 12M Series 2 / 120M Series 2 "MOTOR GRADER HYDRAULIC SYSTEM"     KENR9045    
OMM 12M Series 2 / 120M Series 2 "MOTOR GRADERS"     SEBU8489    A simplified electrical schematic of the AWD ECM system is included at the end of this manual. For a complete schematic, see the machine Electrical Schematic.When the troubleshooting procedure says "REPAIR OR REPLACE THE HARNESS", use the machine Electrical Schematic to trace the circuit. Perform resistance checks at the harness connectors to locate harness failures. Check the ground circuit at the harness connector for the components. Less than 5 ohms of resistance is required between the ground contacts of the connector and the frame ground. Ground resistance greater than 5 ohms can cause incorrect diagnosis.During troubleshooting, inspect all harness connections before any component is replaced. If these connections are not clean, tight, and fully engaged, permanent, or intermittent electrical problems can result. Check that the wires are pushed into the connectors completely.Failure of an electrical component can cause the failure of other components. Correct the cause of an electrical system failure before replacing a component. If wire insulation is punctured during troubleshooting, seal the damage with 8T-0065 RTV Silicone Sealant. Cover the sealant with two layers of 1P-0810 Electrical Tape .ECM Pull Up Voltage
The following aid in diagnostics of certain types of electrical circuits that are controlled by the ECM
An internal "pull up voltage" is connected to the switch of the ECM.
An internal "pull up voltage" is connected to the ECM at the contacts of the sensor signal input.
An