HOSE AS 2754892 - Caterpillar

Illustration 1 g01987193
Connections of the compressor for the air conditionerThis diagnostic code is associated with the compressor for the air conditioner. This diagnostic code means that the voltage to the compressor is below 200 VDC.The possible causes of this diagnostic code are listed:
The compressor for the air conditioner has failed.
The Accessory Power Converter (APC) has failed.
A connection for the wiring has failed.Test Step 1. CHECK THE CONNECTIONS.Note: Do not perform any maintenance on the Electric Drive System for the Power Train or the Accessory Power System when the HV Present Lamp is illuminated.Note: In order to verify that voltages are at a safe level before machine service is performed, follow the "Safe Shutdown Procedure For Electric Drive Tractors" that is in the Troubleshooting, "Electrical Maintenance Guidelines" section of this manual. Note: After completing the safe shutdown procedure, inspect the harness connectors that are involved in the HV Present Lamp circuits. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, secure and in good condition. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure.
Turn the disconnect switch and the key start switch to the OFF position.
Inspect the harness connectors. Clean the contacts of the harness connectors and check the wires for damage to the insulation that is caused by excessive heat, pinching, or chafing.
Reconnect all harness connectors in order to make sure that the connectors are fully seated.
Turn the disconnect switch and the key start switch to the ON position.
Start the engine.
Check the status of the diagnostic code.Expected Result:The diagnostic code is no longer present.Results:
YES - The wiring harness or the connectors have been damaged.Repair: Replace the harness. Make sure that the new harness has corrected the diagnostic code.STOP
NO - The wiring harness or the connectors have not been damaged. The APC may have failed.Repair: Check the circuit again. It is unlikely that the APC has failed. Exit this procedure and perform this procedure again. For more information, contact your dealership for possible consultation with Caterpillar. This consultation may greatly reduce repair time.STOP