PLATE 2860864 - Caterpillar

Illustration 1 g00538724
Power Train Electronic Control (1) Connector J1. (2) Connector J2.
Illustration 2 g00538726
Connectors for Power Train Electronic Control (3) Screw.Note: To remove the machine harness from the power train ECM, use screw (3) in the center of the connector.
Table 1
40-Pin Connector J1    
Connector Pin (1)    Function    
1     24 Volt ECM Supply (Key ON)    
2     (Negative) Battery    
3     CAT Data Link (Negative)    
4     Number 2 Clutch Solenoid (Reverse)    
5     (Negative) Battery    
6     (Positive) Battery 24 Volt ECM Supply (Key ON)    
7     Solenoid Return    
8     Starter Relay Coil    
9     CAT Data Link (Positive)    
10     Number 1 Clutch Solenoid (High Forward)    
11     Number 4 Clutch Solenoid (First Speed)    
12     Tong Close Solenoid    
13     Neutral Direction Switch to Ground    
14     Reverse Direction Switch to Ground    
15     Switch and Sensor Ground    
16     Switch and Sensor Ground    
17     Number 3 Clutch Solenoid (Low Forward)    
18     Grapple Rotate Solenoid (Clockwise)    
19     Transmission Upshift Switch (N/C)    
20     Tong Switch OFF Position    
21     Tong Close Input    
22     Tong Open Input    
23     Transmission Upshift Switch (N/O)    
24     Ground for Cable Skidder only    
25     Transmission Downshift Switch (N/C)    
26     Transmission Downshift Switch (N/O)    
27     Parking Brake ON position    
28     Differential Lock Switch To Battery (+24 Volts)    
30     Forward Position (Transmission)    
32     Lockup Enable Switch (Torque Converter Lockup Clutch)    
33     Grapple Rotate Switch (Counterclockwise)    
36     Parking Brake OFF position    
37     Grapple Rotate Switch Input (Clockwise)    
38     Grapple Rotate Switch Input (OFF)    
40     Key Switch START Position (+24 Volts)    
( 1 ) Pins that are not shown are unused.
Table 2
40-Pin Connector J2    
Connector Pin (1)    Function    
1     Number 6 Clutch Solenoid (Third Speed)    
2     Grapple Rotate Solenoid (Counterclockwise)    
3     Solenoid Return    
5     Grapple Auto/Man Switch (N/C)    
7     Number 5 Clutch Solenoid (Second Speed)    
8     Torque Converter Lockup Clutch Solenoid    
11     Grapple Auto/Man Switch (N/O)    
13     Grapple Solenoid Return Relay    
19     Tong Open Solenoid    
22     Air Inlet Heater (AIH)    
23     Engine Speed Return    
24     Transmission Speed Return    
28     Backup Alarm    
29     Engine Speed Signal    
34     Indicator (Torque Converter Lockup Clutch)    
35     Transmission Speed Signal    
37     Differential Lock Solenoid    
38     Tong Pressure Sensor    
( 1 ) Pins that are not shown are unused.