SOLENOID A 0331871 - Caterpillar

Illustration 1 g02561378
Table 1
Contact Description - 627H Connector J1 - Scraper Transmission ECM    
Input     KEY SWITCH (ON)     1    
Input/output     CAT DATA LINK (HIGH)     10    
Ground     BATTERY -     13    
Ground     CAT DATA LINK (LOW)     20    
Input     TC OIL TEMP SENSOR     22    
Ground     BATTERY -     23    
Power     BATTERY +     31    
Power     BATTERY +     39    
Power     BATTERY+     46    
Input     LOCKUP CLUTCH SOL     48    
Output     SYNC SOL     49    
Ground     PROP DRIVER 1-4 SOL RTN     50    
Ground     BATTERY -     57    
Table 2
Contact Description - 627H Connector J2 - Scraper Transmission ECM    
Type    Function    No.    
Input     ENGINE START     1    
Output     UPSHIFT SOL     2    
Ground     ON/OFF SOL DRIVER RTN 1     4    
Output     DOWNSHIFT SOL     5    
Output     ACTION LAMP     6    
Output     START RELAY     7    
Ground     ON/OFF SOL DRIVER RTN 2     8    
Output     TRANSMISSION GEAR 1     30    
Output     TRANSMISSION GEAR 2     31    
Output     TRANSMISSION GEAR 3     36    
Output     TRANSMISSION GEAR 4     37    
Output     TRANSMISSION GEAR 5     38    
Input/Output     CAN A DATA LINK + (HIGH)     56    
Ground     CAN A DATA LINK (SHIELD)     57    
Ground     ANALOG PASSIVE SENSOR RTN     63    
Input/Output     CAN A DATA LINK + (HIGH)     67    
Ground     CAN A DATA LINK - (LOW)     68    
Ground     CAN A DATA LINK (SHIELD)     69    
Ground     CAN A DATA LINK - (LOW)     70    The Scraper Transmission ECM makes logical decisions based on inputs to the ECM and information stored in the ECM memory. The ECM sends out corresponding responses through the ECM outputs. The ECM input and output signals travel via 2 wire harnesses that have 70 contacts each. The Scraper Transmission circuit breaker, located in the Scraper, sends System Power (+ Battery) to the ECM.Inputs
Inputs inform the Scraper Transmission ECM of the status of certain machine conditions. The inputs receive either an open or a grounded signal from the corresponding components. The inputs are listed in the table of Contact Descriptions. Outputs
The Scraper Transmission ECM responds to decisions by sending electrical signals through the various outputs. The outputs of the ECM create an action and provide information. The outputs are listed in the table of Contact Descriptions.