VALVE GP-MAIN CONTROL 3811869 - Caterpillar

Table 2
Associated Diagnostic Trouble Codes
J1939 Code CDL Code
102-18 E1045
3480-15 or -16 E1050
3480-17 or -18 E1052
3487-7 E1041 (1)
4077-15 or -16 E1051
4077-17 or -18 E1053 Note: The ARD Ignition Test cannot be performed if the DPF soot loading is above 80%. When the DPF soot loading is above 80%, the Manual DPF Regeneration must be performed using Cat ET.
Table 3
Troubleshooting Test Steps Values Results
1. Check for Associated Codes
A. Establish communication between Cat ET and the Electronic Control Module (ECM). Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Download the "Warranty Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
C. If troubleshooting an E1026 or 3474 code, access the "Aftertreatment Regeneration History" in Cat ET.
1. Click the "Information" tab.
2. Click "History".
2. Click "Aftertreatment Regeneration History".
Note: If there were three successful regenerations since the code was logged, do not troubleshoot this code. Clear the code and return the unit to service.
Associated Code
Result: An associated code is not present.
Proceed to Test Step 2.
Result: An associated code is present.
Repair: Refer to the appropriate troubleshooting procedure for the associated code.
2. Check the Current Flow Through the Heater
A. Verify that the engine is off.
B. Check the current flow through the heater. Refer to Systems Operation/Testing and Adjusting, "ARD Nozzle Heater (Current) - Test" for the correct procedure.
Between 7.0 A and 14 A for a 12 V system. Or, between 3.5 A and 7 A for a 24 V system
Result: The current flow is OK.
Proceed to Test Step 3.
Result: The current flow is not between 7.0 A and 14 A for a 12 V system. Or, the current flow is not between 3.5 A and 7 A for a 24 V system.
Repair: There may be a problem with the ARD nozzle. Refer to Troubleshooting, "ARD Nozzle Heater - Test".
3. Perform the "ARD Air System Service Test"
A. Reset all active codes and clear all logged codes.
B. Use Cat ET to perform an "ARD Air System Service Test" to verify that the problem is resolved.
ARD Air System Service Test
Result: The "ARD Air System Service Test" passed.
Proceed to Test Step 4.
Result: The "ARD Air System Service Test" failed.
Repair: There is a problem with the ARD combustion air system. Refer to Troubleshooting, "ARD Combustion Air - Test".
4. Clean the Flame Detection Temperature Sensor
A. Remove flame detection temperature sensor (2).
B. Clean the flame detection temperature sensor. Use a nonmetallic cleaning pad to clean the sensor.
Flame Detection Temperature Sensor
Result: The components are clean. The flame detection temperature sensor is not damaged.
Repair: Install the flame detection sensor.
Proceed to Test Step 5.
Result: The flame detection temperature is damaged.
Repair: Replace flame detection temperature sensor.
Proceed to Test Step 5.
5. Check the ARD for Proper Operation
A. Reset all active codes and clear all logged codes. Use Cat ET to perform an "ARD Ignition Test" to verify that the problem is resolved.
ARD Ignition Test
Result: The test is successful.
Proceed to Test Step 7.
Result: The test is not successful.
Proceed to Test Step 6.
Illustration 1 g06225032
(1) Fouled slot
Illustration 2 g06225035
(2) Acceptable soot accumulation
Table 4
Troubleshooting Test Steps Values Results
6. Inspect