PLATE AS 1233281 - Caterpillar

Illustration 1 g02397796
Schematic of the Front Wipers/Washer Controls
This diagnostic code is associated with the "Front Wiper Speed Control" Relays. The FMI 03 diagnostic code means that the ECM has detected that the voltage of the relay circuit is above normal or that the ECM has detected voltage in the circuit when no voltage should be present.Conditions that could cause this diagnostic code to be activated are listed below:
The relay energize circuit is shorted to another voltage source.
The switch panel has failed.
The ECM has failed. A failure of the Machine ECM is unlikely.Note: Before performing this procedure, inspect the harness connectors that are involved in the circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, that all connections are secure and that all connections are 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.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes. Clear any created diagnostic codes after the original diagnostic code has been corrected.System Response:A Level 1 warning will be generated.Test Step 1. CHECK THE ENERGIZE CIRCUIT OF THE RELAYS FOR A SHORT
Turn the disconnect switch and the