SCREEN GP-HYDRAULIC 1057450 - Caterpillar

Illustration 1 g00618544
Solenoid's Locations (1) Solenoid 1 (2) Solenoid 2 (3) Solenoid 3 (4) Solenoid 4 (5) Solenoid 5 (6) Solenoid 6
Illustration 2 g00618138
Schematic of Solenoid 1Use table 1 in order to determine the solenoids that are energized. Table 1 identifies the solenoids that are energized for each position on the shift lever.
Table 1
Gear     Solenoid that is Energized    
Neutral     No solenoids are energized.    
Forward 1     3 and 4    
Forward 2     3 and 5    
Forward 3     3 and 6    
Forward 4     1 and 6    
Reverse 1     2 and 4    
Reverse 2     2 and 5    
Reverse 3     2 and 6    Note: The approximate coil resistance of the solenoid is 34 ohms at 25 °C (77.0 °F).This diagnostic code is recorded when the ECM reads the voltage of the solenoid circuit as above normal (short to +battery).Note: This procedure can cause new diagnostic codes to be recorded. Ignore these created diagnostic codes. Complete the following procedure. Then clear the created diagnostic codes.This diagnostic code is associated with transmission solenoid 1.FMI 05 is recorded when the transmission electronic control module senses an incomplete circuit. The solenoid's circuit is incomplete.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine. Ensure that the diagnostic code for the solenoid is active.
Disconnect the machine harness from the solenoid.
At the machine harness connector for the solenoid that is being tested, install a jumper wire. The jumper wire should be installed from 751-GN-18 to 921-WH-18.
Observe the status of the diagnostic code. The diagnostic code is active or the diagnostic code is NOT active.Expected Result:The status of the diagnostic code is active. The status of the diagnostic code is NOT active as the jumper wire is installed and then removed.Results:
YES - The status of the diagnostic code is active. The status of the diagnostic code is NOT active as the jumper wire is installed and then removed. The circuit is correct. The solenoid has failed.Repair: Replace the solenoid. Stop.
NO - The diagnostic code remains active after the jumper wire is installed. Proceed to Test Step 2.Test Step 2. CHECK THE SOLENOID CIRCUIT FOR AN OPEN.
The jumper wire that is between the signal wire and the return wire remains installed.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness connector from the ECM.
At the machine harness connector for the ECM, measure the resistance from contact 31 for the solenoid to contact 39.Expected Result:The resistance should be less than 5000 ohms.Results:
YES - The resistance is less than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NO - The resistance is greater than 5000 ohms. There is an open circuit in the machine harness. The open circuit is in the signal wire (751-GN-18) or in return wire (975-WH-18) of the machine harness.Repair: Repair the machine harness or replace the machine harness. Stop.Test Step