PISTON & ROD GP 1841649 - Caterpillar

Illustration 1 g01444892
Schematic of the Transmission Solenoid 1 (Forward Low)This diagnostic code is associated with the Transmission Solenoid 1 (Forward Low). The FMI 05 means that the ECM has determined that an open in the circuit exists.The possible causes of this diagnostic code are listed below:
The energize circuit of the solenoid is open.
The return circuit of the solenoid is open.
The solenoid has failed.
The ECM has failed. This is unlikely. Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1401 FMI 05 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.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, 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. System Response:The transmission will be placed in the Neutral gear until the diagnostic has been corrected.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect