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PLATE AS 3157228 - Caterpillar



3157228 PLATE AS Caterpillar parts PLATE
Rating:
46
Alternative (cross code) number:
CA3157228
315-7228
3157228
Caterpillar 3157228 PLATE AS

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with the active diagnostic code.
Verify that the latch tab of the connector is correctly latched. Also verify that the latch tab of the connector has returned to the fully latching position.
Check the screw for the ECM connector for the correct torque of 6 N m (53 lb in).
Check the harness for abrasions and for pinch points from the sensor to the ECM.Expected Result:All connectors, pins, and sockets are correctly connected. The harness should be free of corrosion, abrasion, and pinch points.Results:
OK - Proceed to Test Step 3.
Not OK - Repair the connectors or the harness and/or replace the connectors or the harness. Ensure that all of the seals are correctly in place and ensure that the connectors are correctly connected. Use the electronic service tool in order to clear all logged diagnostic codes and then verify that the repair has eliminated the fault. If the fault has not been eliminated, proceed to Test Step 3.Test Step 3. Verify That The Diagnostic Code Is Still Active
Turn the keyswitch to the ON position.Note: Wait at least 10 seconds for activation of the diagnostic codes.
Access the "Active Diagnostic Code" screen on the electronic service tool and check for active diagnostic codes.
Determine if the diagnostic code is related to an open circuit fault or a short circuit fault.Expected Result:An XXX-4 diagnostic code or an XXX-3 diagnostic code is active.Results:
SHORT Circuit - An XXX-4 diagnostic code is active at this time. Proceed to Test Step 4.
OPEN Circuit - An XXX-3 diagnostic code is active at this time. Proceed to Test Step 5.
An XXX-3 diagnostic code is not active. An XXX-4 diagnostic code is not active - An intermittent fault may exist. Proceed to Test Step 7.Test Step 4. Disconnect The Sensor In Order To Create An Open Circuit
Turn the keyswitch to the OFF position.
Disconnect the sensor connector of the sensor with the XXX-4 diagnostic code.
Turn the keyswitch to the ON position.Note: Wait at least 10 seconds for activation of the diagnostic codes.
Access the "Active Diagnostic Code" screen of the electronic service tool. Check for an active XXX-3 diagnostic code.Results:
An XXX-4 diagnostic code was active before disconnecting the sensor. An XXX-3 diagnostic code became active after disconnecting the sensor. - Repair: Refer to Troubleshooting, "Electrical Connectors - Inspect".Inspect the seals of the connectors for damage.Connect the sensor and verify that the XXX-4 diagnostic code returns. If the diagnostic code returns, the sensor is faulty.Replace the sensor.Use the electronic service tool in order to clear all logged diagnostic codes.STOP
An XXX-4 diagnostic code was active before disconnecting the sensor. The diagnostic code is still active after disconnecting the sensor. - There is a short circuit between the sensor harness connector and the ECM. Leave the sensor disconnected. Proceed to Test Step 6.Test Step 5. Create a Short Circuit Between the Signal and the Common Terminals at the Sensor Harness Connector
Disconnect the suspect sensor connector.
Turn the keyswitch to the ON position.Note: Wait at least 10 seconds for the activation of any diagnostic fault codes.
Fabricate a jumper


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