R1600G Load Haul Dump Power Train Electronic Control System Electronic Control Module (Power Train) Caterpillar


Electronic Control Module (Power Train)
`
1.1. Inputs
2.1. Outputs
3.1. Input/Output
4.1. STIC Steering



Illustration 1g00291779

Power Train Electronic Control Module (ECM)

(1) Connector J1

(2) Connector J2

The Power Train Electronic Control Module (ECM) is located under the operator seat in the operator station. The Power Train ECM shifts the transmission. The operator input indicates the desired speed for the transmission and the desired direction for the transmission. The Power Train ECM makes decisions that are based on the input information and on the memory information. After the Power Train ECM receives the input information and the memory information, the Power Train ECM sends a corresponding response via the outputs. The inputs and outputs of the Power Train ECM are connected to the machine harness at contact connectors J1 and J2.

Inputs

The Power Train ECM has several input devices. Input devices inform the Power Train ECM of the operating conditions of the machine. The Power Train ECM has inputs from switches and sensors. Switches provide an open, a ground or a +battery to the inputs of the Power Train ECM. Sensors provide a constantly changing signal to the Power Train ECM. The inputs into the Power Train ECM are listed in the tables that follow.

Outputs

The Power Train ECM responds to decisions by sending electrical signals through the outputs. The outputs can create an action or the outputs can provide information to the Power Train ECM. The outputs for the Power Train ECM are listed in the tables that follow.

Input/Output

The AVS Data Link is bidirectional. This allows the Power Train ECM to receive information and this allows the Power Train ECM to send information. The AVS Data Link allows the sharing of information with other electronic controls.

A module identifier (MID) is assigned to all of the electronic controls that use the AVS Data Link. The MID for the Power Train ECM is 081.

ReferenceFor information on the AVS Data Link, refer to Systems Operation, Troubleshooting, Testing and Adjusting, "AVS Data Link" for the machine that is being serviced.

ReferenceFor information on the AVSpare Monitoring System, refer to Systems Operation, Troubleshooting, Testing and Adjusting, "Monitoring System (Power Train Functions)" for the machine that is being serviced.

STIC Steering

Table 1
J1 Connector (Power Train ECM)    
No.     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     AVS Data Link (+)     Input/Output    
11     Clutch 2 Solenoid (Forward)     Solenoid Output    
13     Neutral Switch     Switch Input    
14     Reverse Switch     Switch Input    
17     Clutch 1 Solenoid (Reverse)     Solenoid Output    
18     Ride Control Solenoid     Solenoid Output    
19     Upshift Switch (N/C)     Switch Input    
20     Options Code 2     Switch Input    
21     Ride Control Switch 1 (Auto)     Switch Input    
22     Ride Control Switch 2 (Service)     Switch Input    
23     Upshift Switch (N/O)     Switch Input    
24     Options Code 1     Switch Input    
25     Downshift Switch (N/C)     Switch Input    
26     Downshift Switch (N/O)     Switch Input    
27     Parking Brake Oil Pressure Switch (N/C)     Switch Input    
29     Autoshift Control Switch 2 (Manual)     Switch Input    
30     Forward Switch     Switch Input    
31     Autoshift Control Switch 3 (Fourth Speed)     Switch Input    
32     Autoshift Control Switch 4 (Third Speed)     Switch Input    
33     Autoshift Control Switch 5 (Second Speed)     Switch Input    
34     Remote Input     Switch Input    
35     Option Code 3     Switch Input    
36     Parking Brake Oil Pressure Switch (N/O)     Switch Input    
37     STIC Control Lock Limit Switch (N/O)     Switch Input    
38     STIC Control Lock Limit Switch (N/C)     Switch Input    
39     Option Code 0     Switch Input    
40     Key Start Switch (+)     Switch Input    

Table 2
J2 Connector (Power Train ECM)    
No.     Function     Type    
1     Clutch 4 (Third Gear)     Solenoid Output    
2     Clutch 6 (First Gear)     Solenoid Output    
3     Solenoid Return     Solenoid Return    
4     Transmission Neutralizer Limit Switch     Switch Input    
5     Transmission Oil Pressure Sensor     Frequency Input    
7     Clutch 3 (Fourth Gear)     Solenoid Output    
8     Clutch 5 (Second Gear)     Solenoid Output    
13     Lockup Clutch Solenoid     Solenoid Output    
14     Transmission Output Speed Sensor (+)     Frequency Input    
20     Transmission Output Speed Sensor (-)     Frequency Input    
23     Engine Speed Sensor (+)     Frequency Input    
28     Spare     Switch Input    
29     Engine Speed Sensor (-)     Frequency Input    
37     Backup Alarm (+24V)     Solenoid Output    

Information System:

R1600G Load Haul Dump Power Train Electronic Control System Autoshift Control
R1600G Load Haul Dump Power Train Electronic Control System Power Train Electronic Control System
R1600G Load Haul Dump Braking System System Pressure - Release
R1600G Load Haul Dump Steering System Steering System Pressure - Test and Adjust
R1600G Load Haul Dump Steering System System Pressure - Release
R1600G Load Haul Dump Steering System Steering System Troubleshooting
R1600G Load Haul Dump Power Train Machine Preparation for Troubleshooting
24M Motor Grader Hydraulic and Steering System Implement System
587R Pipelayer Machine Systems Main Control Valve - Assemble
3412E Engine for Caterpillar Built Machines Electrical Power Supply - Test
587R Pipelayer Machine Systems Main Control Valve - Disassemble
24M Motor Grader Power Train Transmission Hydraulic Control
R1600G Load Haul Dump Power Train Electronic Control System Switches
R1600G Load Haul Dump Hydraulic System System Pressure - Release
R1600G Load Haul Dump 3176C Engine Supplement System Pressure - Release
CS-563E, CP-563E, CS-573E, CP-573E, CS-583E, CP-583E, CS-663E, CP-663E and CS-683E Vibratory Soil Compactors Additional Messages
120K Motor Grader Specifications
3408E and 3412E Engines for the 844 Wheel Dozer and for 988F Series II and 990 Series II Wheel Loaders Ether Starting Aid - Test
2007/11/19 Improvement to the Governor Control Groups {1265, 1276}
120K Motor Grader Lifting and Tying Down the Machine
2008/02/11 An Improved Exhaust Piping Is Now Used on Track Skidders {1061, 1062}
2007/07/23 Troubleshooting the Rotary Switch Assembly for the Engine Speed {1408, 7332}
120K Motor Grader Tire Shipping Pressure
938H Wheel Loader and IT38H Integrated Toolcarrier Hydraulic System Relief Valve (Line)