VALVE GP-MAIN CONTROL 2065532 - Caterpillar

Illustration 1 g00279578
Machine Electronic Control Module (1) Connector J1 (2) Connector J2
Table 1
Machine Electronic Control Modules    
Part Number     Part Name    
172-9387     Unprogrammed Electronic Control Module    
172-9389     Unprogrammed Electronic Control Module    
172-9391     Unprogrammed Electronic Control Module    WinFlash is used to load a new flash software file into the machine electronic control modules (ECM) that are listed in Table 1. Certain conditions must be met before one of the ECM's listed in Table 1 will accept this new flash software file:
The keyswitch must be ON for all applications.
The engine must be OFF for all applications.Table 2 shows a product-family breakdown of additional conditions which must be met before a machine ECM will accept the new flash software file.
Table 2
Prerequisites for Flashing Software into Machine ECMs (by Product Family)    
Product Family     Control/Control System     Condition Which Must Be Met    
Medium Wheel Loader
Large Wheel Loader
Integrated Toolcarrier     Implement Control     The implement lockout switch must be in the LOCKED position    
Medium Wheel Loader
Large Wheel Loader
Integrated Toolcarrier
Wheel Skidder     Power Train Control     The transmission shifter must be in the NEUTRAL position    
Medium Track-Type Tractor
Large Track-Type Tractor
Pipelayer     Power Train Control     The parking brake must be ON    
Excavator     Machine Control     The pilot hydraulic system must be DISENGAGED    
Motor Grader     Transmission Control     The transmission shifter must be in PARK    
Off-Highway Truck/Tractor     Automatic Retarder Control (ARC)     There must be NO GROUND SPEED (1)    
Off-Highway Truck/Tractor     Traction Control System (TCS)     There must be NO GROUND SPEED    
Off-Highway Truck/Tractor     Transmission Control and Integrated Brake Control (IBC)     There must be NO GROUND SPEED (2)    
Track-Type Loaders     Hystat Control     The Speed/Direction Lever must be in PARK    
( 1 ) This only applies when updating software. A new ECM cannot be flashed with premium ARC software unless equivalent premium software is installed.
( 2 ) This only applies when updating software. A new ECM cannot be flashed with premium IBC software unless equivalent premium software is installed.