0513424 JOHNSON CONNECTOR

Table 1
J1939 Code and Description CDL Code and Description Comments
102-16
Engine Intake Manifold #1 Pressure : High - moderate severity (2) E1044 (2)
High Intake Manifold Pressure The intake manifold pressure is above the high-pressure parameter limit. The code is logged.
102-18
Engine Intake Manifold #1 Pressure : Low - moderate severity (2) E1045 (2)
Low Intake Manifold Pressure The intake manifold pressure is below the low-pressure parameter limit. The code is logged.
103-0
Engine Turbocharger #1 Speed : High - most severe (3) E980 (3)
Turbocharger #1 Overspeed The turbocharger has operated a speed greater than the parameter limit. The code is logged.
103-16
Engine Turbocharger #1 Speed : High - moderate severity (2) E980 (2)
Turbocharger #1 Overspeed The turbocharger has operated a speed greater than the parameter limit. The code is logged.
641-7
Engine Turbocharger Variable Geometry Actuator #1 : Not Responding Properly 27-7
Variable Geometry Turbocharger Actuator #1 : Not Responding Properly The turbocharger actuator is not responding properly, the code is logged.
641-12
Engine Turbocharger Variable Geometry Actuator #1 : Failure 27-12
Variable Geometry Turbocharger Actuator #1 : Failure The turbocharger actuator is not responding properly, the code is logged.
641-13
Engine Turbocharger Variable Geometry Actuator #1 : Out of Calibration 27-13
Variable Geometry Turbocharger Actuator #1 : Out of Calibration The turbocharger actuator is not responding properly, the code is logged.
Table 2
Associated Codes
1231-9
2348-9 Probable Causes
Associated codes
Air leaks
Sensors
Turbocharger actuator
TurbochargerRecommended Actions
Note: The "Variable Geometry Turbo Installation Calibration" in Cat® Electronic Technician (ET) must be performed after any procedure is completed on the variable turbocharger system.
Table 3
Troubleshooting Test Steps Value Results
1. Check for Associated Codes
A. Turn the keyswitch to ON.
B.Connect to Cat Et and check for and active or logged associated codes listed in Table 2.
Associated Code
Result: There is not an associated code active or logged.
Proceed to Test Step 2.
Result: There is an associated code active or logged.
Repair: Troubleshoot the associated code before continuing with this procedure. Refer to the appropriate procedure using the Diagnostic Trouble Code list.
If the problem is not resolved, proceed to Test Step 2.
2. Check for Leaks
A. If any of the codes from the table are present, inspect for the following:
- Exhaust leaks
- Turbocharger piping leaks
- ATAAC leaks
Air System Leak
Result: There are not any leaks present.
Proceed to Test Step 3.
Result: There are leaks found.
Repair: Repair the leaks as necessary. Verify that codes are cleared.
If the problem is not resolved, proceed to Test Step 3.
3. Verify the Pressure and Temperature Sensors Readings Are Correct
A. Refer to Combined Manual, SENR9853, "C11 and C13 Industrial Engines", "Inlet Manifold Pressure - Test".
Sensor Readings
Result: The sensor readings are within limits.
Proceed to Test Step 4.
Result: The readings are not within limits.
Repair: Replace the sensors that are not reading the correct values. Proceed to Test Step 4.
4. Perform the "Variable Geometry Turbo System Functional Test" in Cat ET
"Variable Geometry Turbo System Functional Test"
Result: The test passed successfully.
Return the unit to service.
Result The test did not pass.
Proceed to Test Step 5.
5. Check the Turbocharger Actuator Operation
A. Disconnect the Turbocharger Actuator Linkage and run the "Variable Geometry Turbo Actuator Override".
B. Change the override to 100% and observe the turbocharger actuator for movement.
Turbocharger
Result: There is not any movement observed from the turbocharger actuator.
Repair: Replace the turbocharger actuator.
1. Perform the "Variable Geometry Turbo Installation Calibration" in Cat ET.
2. Rerun the "Variable Geometry Turbo System Test" to verify proper operation.
Return the unit to service.
Result: There is movement observed from the turbocharger actuator.
Repair: Replace the turbocharger and rerun the test to verify proper operation.
1. Perform the "Variable Geometry Turbo Installation Calibration" in Cat ET.
2. Rerun the "Variable Geometry Turbo System Test" to verify proper operation.
Return the unit to service.
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).