PIN 2168486 - Caterpillar

Table 2
40-Pin Connector J1    
No. (1)    Function    Type    
1     + Battery     Power    
2     Ground     Ground    
3     Cat Data Link -     Input/Output    
5     Ground     Ground    
6     + Battery     Power    
7     Solenoid Return     Output Return    
8     Start Relay     Solenoid Output    
9     CAT Data Link +     Input/Output    
11     Forward Solenoid     Solenoid Output
ON/OFF    
12     Ride Control Solenoid 2     Solenoid Output
(ON/OFF)    
13     Neutral Switch     Switch Input (open/ground)    
14     Reverse Direction Switch     Switch Input (open/ground)    
17     Reverse Solenoid     Solenoid Output
(ON/OFF)    
18     Ride Control Solenoid 1     Solenoid Output
(ON/OFF)    
19     Upshift Switch (N/C)     Switch Input (open/ground)    
20     Option Code 2     Switch Input (open/ground)    
21     Ride Control Switch 1     Switch Input (open/ground)    
22     Ride Control Switch 2     Switch Input (open/ground)    
23     Upshift Switch (N/O)     Switch Input (open/ground)    
24     Option Code 1     Switch Input (open/ground)    
25     Downshift Switch (N/C)     Switch Input (open/ground)    
26     Downshift Switch (N/O)     Switch Input (open/ground)    
27     Parking Brake Switch (N/C)     Switch Input (open/ground)    
29     Auto/Man Switch (Input 1)     Switch Input (open/ground)    
31     Auto/Man Switch (Input 2)     Switch Input (open/ground)    
32     Auto/Man Switch (Input 3)     Switch Input (open/ground)    
33     Auto/Man Switch (Input 4)     Switch Input (open/ground)    
35     Option Code 3     Switch Input (open/ground)    
36     Park Brake Switch (N/O)     Switch Input (open/ground)    
39     Option Code 0     Switch Input (open/ground)    
40     Start Switch Key     Switch Input (open/(+) battery)    
( 1 ) The connector contacts that are not listed are not used.
Table 3
40-Pin Connector J2    
No. (1)    Function    Type    
1     Speed 3 Solenoid (2)     Solenoid Output (ON/OFF)    
2     Speed 1 Solenoid     Solenoid Output (ON/OFF)    
3     Solenoid Return     Output Return    
4     Neutralizer Switch     Switch Input (open/grnd)    
7     Speed 4 Solenoid (2)     Solenoid Output (ON/OFF)    
8     Speed 2 Solenoid     Solenoid Output (ON/OFF)    
14     Transmission Speed Sensor     Sensor Input    
20     Transmission Speed Sensor Return     Sensor Input    
23     Engine Speed Sensor     Sensor Input    
29     Engine Speed Sensor Return     Sensor Input    
37     Backup Alarm     Solenoid Output (ON/OFF)    
( 1 ) The connector contacts that are not listed are not used.
( 2 ) Only on three and four speed machines.