RACK 1M0103 - Caterpillar

Illustration 1 g00728290
Schematic of solenoid 6
Illustration 2 g00729451
Location of solenoids (1) Solenoid 1 (2) Solenoid 2 (3) Solenoid 3 (4) Solenoid 4 (5) Solenoid 5 (6) Solenoid 6Use 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
Information about the Solenoids    
Solenoid     Number of the Solenoid (1)     Number of the Contact    
Forward High     1     31    
Reverse     2     32    
Forward Low     3     33    
Speed Clutch 1     4     34    
Speed Clutch 2     5     35    
Speed Clutch 3     6     36    
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    
( 1 ) This number is used in order to identify the solenoids in the manual.This diagnostic code is associated with transmission solenoid 6.FMI 03 is recorded when the transmission electronic control module senses a short. The short is between the battery and the solenoid.Test Step 1. CHECK FOR A SHORT TO THE BATTERY.
Turn the key start switch to the OFF position.
Disconnect the machine harness from the control module.
Measure the resistance from contact 1 to contact 36.Turn the headlights on and off and turn the heater on and off during the test. This ensures that these circuits are not shorted to the output of the solenoid.Expected Result:The resistance is less than 5 ohms.Results:
YES - The resistance is less than 5 ohms. The solenoid harness has a short to the battery.Repair: Repair the harness or replace the harness. Stop.
NO - The resistance is NOT less than 5 ohms. The solenoid harness does not have a short to the battery. Proceed to test step 2.Test Step 2. CHECK FOR A SHORT TO OTHER SOLENOID'S OUTPUTS.
Verify that the key start switch is in the OFF position.
Disconnect the machine harness from the control module.
Measure the resistance from contact 36 to contact's for the other solenoid's outputs.Expected Result:The resistance is less than 5 ohms.Results:
YES - The resistance is less than 5 ohms. The solenoid harness has a short.Repair: Repair the harness or replace the harness. Stop.
NO - The resistance is NOT less than 5 ohms. The solenoid harness does not have a short. Inspect the harness connector and the contacts. Verify that the active fault is present. If the active fault is present the transmission electronic control module has failed.Repair: Replace the transmission electronic control module. Refer to Testing and Adjusting, "Electronic Control Module (ECM) - Replace". Stop.