BEARING 6J7797 - Caterpillar

Table 1
J1939 Code and Description CDL Code and Description Comments
101-13
Crankcase Air Pressure Sensor : Out of Calibration 101-13
Crankcase Air Pressure Sensor : Out of Calibration During key on, the signal voltage from the crankcase air pressure sensor indicated a crankcase air pressure greater than +/- 1.5 kPa (0.2 psi).
There is not a reference sensor for this sensor
3563-13
Engine Intake Manifold #1 Absolute Pressure : Out of Calibration 1785-13
Intake Manifold Pressure Sensor : Out of Calibration During key on, the signal voltage from the crankcase air pressure sensor indicated a crankcase air pressure greater than +/- 18 kPa (3 psi).
Reference sensor: Atmospheric Pressure Sensor Probable Causes
Codes
Debris
MoistureRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
Note: The engine coolant temperature must be greater than 0° C (32° F) before beginning this procedure.
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A code is active or logged.
Proceed to Test Step 2.
2. Check for Debris
A. Turn the keyswitch to the OFF position.
B. Check the sensor for debris.
C. If applicable, check the reference sensor for debris.
D. Check the sensor measurement port for blockage by debris.
E. If debris is found, clear the debris from the measurement port and replace the sensor.
F. Connect Cat ET.
G. Use Cat ET to monitor the following code:
- -13
Debris
Result: The sensor measurement port is not blocked by debris.
Proceed to Test Step 3.
Result: A -13 code is not active.
Return to service.
Result: A -13 code is active.
Repair: Replace the sensor. If more than one -13 code is active and the codes have a reference sensor, replace the reference sensor.
If the problem is not resolved, proceed to Test Step 3.
3. Inspect the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Inspect the sensor connector for moisture and corrosion.
Moisture
Result: The sensor connector does not have moisture or corrosion.
Proceed to Test Step 5.
Result: The sensor connector has moisture and/or corrosion.
Proceed to Test Step 4.
4. Remove any moisture and/or corrosion
A. Turn the keyswitch to the OFF position.
B. Disconnect the sensor connector.
C. Remove any moisture and/or corrosion from the outside of the connector. Check for moisture and corrosion inside the connector.