Sensor Calibration Required - Test
This procedure covers the following diagnostic codes:
Show/hide table
| Diagnostic Trouble Codes for Sensor Calibration | ||
|---|---|---|
| J1939 Code | Code Description | Comments |
| 3563-13 | Engine Intake Manifold #1 Absolute Pressure : Out of Calibration | At key on, the intake manifold pressure sensor is checked for a zero reading. During calibration, the pressure offset value is outside the acceptable range. The code is logged. |
| Follow the troubleshooting procedure in order to identify the root cause of the fault. | ||
Show/hide table
| Troubleshooting Test Steps | Values | Results |
|---|---|---|
1. Inspect Electrical Connectors and Wiring A. Thoroughly inspect the terminal connections on the P2J/2 ECM connector and the intake manifold pressure sensor connector. Refer to Troubleshooting, "Electrical Connectors - Inspect". B. Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector and the sensor connector that are associated with the active diagnostic code. C. Check the screw for the ECM connector for the correct torque of 6 N·m (53 lb in). D. Check the harness for corrosion, abrasion, and pinch points from the solenoids to the ECM. |
Loose connection or damaged wire |
Result: There is a fault in a connector or the wiring. Repair any faulty connectors or replace the wiring harness. Ensure that all of the seals are properly in place and ensure that the connectors are correctly coupled. Use the electronic service tool to clear all logged diagnostic codes and verify that the repair eliminates the fault. Result: All connectors, pins, and sockets are correctly coupled and/or inserted. The harness is free of corrosion, abrasion, and pinch points. Proceed to Test Step 2. |
2. Check for Active Diagnostic Codes A. Turn the isolator switch to the OFF position. B. Connect the electronic service tool to the diagnostic connector. C. Turn the isolator switch to the ON position. Wait at least 20 seconds for activation of the diagnostic codes. D. Verify if the diagnostic code that is listed in Table 1 are active. E. Turn the isolator switch to the OFF position. |
Diagnostic codes |
Result: A 3563-13 diagnostic code is active. Proceed to Test Step 3. Result: No diagnostic codes are active. Return the unit to service. |
3. Check the Intake Manifold Pressure Sensor A. Turn the isolator switch to the OFF position. B. Disconnect the intake manifold pressure sensor connector. C. Inspect the connector pins for corrosion and moisture. D. Reconnect the intake manifold pressure sensor connector. E. Connect the electronic service tool. A. Turn the isolator switch to the ON position. F. Monitor the status parameter for the intake manifold pressure while flexing the wiring. |
Sensor |
Result: A 3563-13 diagnostic code is active. Temporarily connect a replacement intake manifold pressure sensor to the harness. Turn the isolator switch to the ON position. Use the electronic service tool in order to check for active diagnostic codes. Wait at least 30 seconds in order for the codes to be displayed. If the fault is eliminated, reconnect the suspect sensor. If the fault returns, permanently install the replacement sensor. Refer to Disassembly and Assembly for the correct procedure. If the fault is not eliminated with a replacement sensor, contact the Technical Communicator at a Cat dealer. Result: No diagnostic code is active. The fault is eliminated. Return the unit to service. |
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