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TUBE 2H9697 - Caterpillar

2H9697 TUBE Caterpillar parts TUBE
Alternative (cross code) number:
Caterpillar 2H9697 TUBE
Weight: 7 pounds 3 kg.

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Illustration 1 g01688495
Schematic of the ride control rocker switchThis switch has two inputs to the ECM. One contact is normally open. The other contact is normally closed.An FMI 04 diagnostic code is recorded when the status of both the inputs are grounded.The following conditions could cause this diagnostic code to be activated:
The "NORMALLY CLOSED" signal circuit (wire F738-WH) is shorted to ground.
The "NORMALLY OPEN" signal circuit (wire F739-GN) is shorted to ground.
The ride control switch has failed.
The ECM has failed. This is unlikely.Test Step 1. CHECK THE SWITCH
Turn the key start switch to the ON position.
The diagnostic code is active.
Remove the wire from contact 2 (wire 200-BK) at the switch.
Toggle the switch and note the status of the diagnostic code.Expected Result:The diagnostic code is no longer active in either position.Results:
OK - The diagnostic code is no longer active in either position.Repair: The ride control switch has failed. Replace the switch. Verify that the new switch corrects the diagnostic code.STOP
NOT OK - The diagnostic code is active in at least one of the positions. Proceed to Test Step 2.Test Step 2. CHECK THE SIGNAL CIRCUITS FOR A SHORT TO GROUND
Turn the key start switch to the OFF position.
Disconnect the machine harness connectors from the ECM.
At the harness connector for the ECM, measure the resistance between contact J2-26 (wire F738-WH) and frame ground.
Measure the resistance between contact J2-36 (wire F739-GN) and frame ground.Expected Result:The resistances should be greater than 5000 ohms.Results:
OK - The resistances are greater than 5000 ohms.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the diagnostic code is still present, replace the ECM. Prior to replacing the ECM, always contact your dealership's Technical Communicator for possible consultation with Caterpillar. This consultation may greatly reduce the repair time. Refer to the Testing and Adjusting, "Electronic Control Module (ECM) - Replace" Story in this manual for additional information.STOP
NOT OK - The resistance is less than 5000 ohms on one of the readings.Repair: The circuit with the low resistance is shorted in the machine harness. Repair the machine harness or replace the machine harness.STOP

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