HOSE AS 3458023 - Caterpillar

diagnostic code is recorded when the VIMS main module reads the voltage of the display back light return circuit and the voltage is above normal.
CHECK FOR SHORT TO +BATTERY
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the VIMS main module.
Disconnect the display back lights on the message center.
Disconnect the bottom portion of the speedometer/tachometer module.
At the machine harness connector for the VIMS main module, measure the resistance between +battery contact 1 and the display back light return circuit connector contact 3. Expected results:The resistance is greater than 5000 ohms.Results:
OK - Resistance is greater than 5000 ohms. The harness circuit resistance is correct. The VIMS main module has failed. Replace the VIMS main module. Refer to the Testing and Adjusting, "Module-Replace" section. STOP.
NOT OK - Resistance is less than 5000 ohms. The machine harness has failed. There is a short between the +battery circuit and the ground circuit of the display back light in the machine harness. Repair the machine harness or replace the machine harness. STOP.