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STOP A.-DRAFT 2H9429 - Caterpillar

2H9429 STOP A.-DRAFT Caterpillar parts STOP
Alternative (cross code) number:
Caterpillar 2H9429 STOP A.-DRAFT
Weight: 69 pounds 31 kg.

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Illustration 1 g01267850
Schematic for the Bucket Raise SolenoidThis diagnostic code is associated with the Bucket Raise Solenoid. The FMI 06 means that the ECM has detected that the current for the solenoid circuit s above normal. Conditions that could causes this diagnostic code to be activated are:
The energize circuit of the solenoid is shorted to a ground source.
The solenoid has failed.
The ECM has failed. This is unlikely. System Response:The machine response is listed:
The bucket will not lower until the fault is repaired and the lever is centered.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. 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.Note: The resistance of the solenoid coil should be 27 1.4 ohms at 20 °C (68.0 °F).Test Step 1. CHECK THE SOLENOID
Turn the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:The active CID 0354 FMI 06 diagnsotic code changes to a CID 0354 FMI 05 diagnostic code when the solenoid is disconnected.Results:
YES - The active CID 0354 FMI 06 diagnostic code changes to a CID 0354 FMI 05 diagnostic code when the solenoid is disconnected. The solenoid circuit in the machine harness is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - The CID 0354 FMI 06 diagnostic code remains active. Disconnecting the solenoid did not change the status of the active diagnostic code. The solenoid is not causing the problem. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUNDThe solenoid remains disconnected from the machine harness.
Disconnect the negative battery cable and turn the key start switch to the OFF position.
Disconnect the machine harness ECM connectors J1 from the ECM.
At the machine harness ECM connectors, measure the resistance from the signal contact J1-67 (wire P831-BU) to frame ground. Measure the resistance from the signal contact J1-67 (wire P831-BU) to all of the other contacts that are used in J1 ECM connectors.
While observing the multimeter resistance measurements, wiggle the machine harness connectors for the ECM and the solenoid. Gently pull on the wires and move the wires around.Expected Result:Each resistance measurement is greater than 5000 ohms at all times during the manipulation of the harness and connectors.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - One or more of the resistance

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