TOOL GP 1288822 - Caterpillar

Illustration 2 g01160332
Hydraulic Pump ECM(Located in the Compartment to the Rear of the Cab) (1) Controller (2) J1 Connector (3) J2 ConnectorConnector Contact Numbers
Illustration 3 g01160968
Hydraulic Pump ECM (1) Controller (2) J1 Connector (3) J2 Connector
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Hydraulic Pump ECM Connectors (2) J1 Connector (3) J2 ConnectorHydraulic Pump ECM
Table 1
Contact Description J1 (1)    
No. (2)    Function    Type    
1     +B     Power    
2     GND     Ground    
9     Throttle Dial S1     Input    
10     Throttle Dial S2     Input    
11     One Touch Low Idle     Input    
13     +B     Power    
14     GND     Ground    
17     Implement Pressure Switch     Input    
19     Throttle Dial S3     Input    
20     Throttle Dial S4     Input    
21     Auto Reverse Fan Pressure Switch     Input    
23     Key Switch     Input    
28     ATCH Step 1 Swing Cancel     Input    
29     Joystick Pressure Switch     Input    
30     Travel Pressure Switch     Input    
33     Cat Data Link +     Input/Output    
43     Cat Data Link -     Input/Output    
45     ATCH Step 3 Swing Cancel     Input    
( 1 ) The ECM responds to an active input only when all the necessary conditions are satisfied.
( 2 ) The connector contacts that are not listed are not used.
Table 2
Contact Description J2 (1)    
No. (2)    Function    Type    
1     Heavy Lift Solenoid     Output    
2     Travel Speed Change Solenoid     Output    
3     1Pump/2Pump Exchange Solenoid     Output    
4     Swing Brake Cancel Solenoid     Output    
7     Power Shift Control Solenoid     Output    
8     Flow Limit Pressure Solenoid     Output    
13     Travel Alarm     Output    
16     Engine Speed Sensor (-)     Output    
19     PRV Return (1)     Ground    
20     PRV Return (2)     Ground    
23     Auto Reverse Fan Solenoid     Output    
25     Engine Speed Sensor (+)     Input    
26     Hydraulic Lock Cancel Switch     Input    
35     Alternator Terminal "R"     Input    
37     Pump Discharge 1 Pressure Sensor     Input    
44     Governor Command     Input    
45     Pump Discharge 2 Pressure Sensor     Input    
46     O.L.W.D. Pressure Sensor     Input    
47     Backup Switch     Input    
49     CAN (+)     Input/Output    
50     CAN (-)     Input/Output    
52     +12V Supply     Power    
( 1 ) The ECM responds to an active input only when all the necessary conditions are satisfied.
( 2 ) The connector contacts that are not listed are not used.