ROLLER ASSEM 2F5883 - Caterpillar

This test is to verify the correct operation of the ARD nozzle heater electrical circuit.
On some industrial engine applications, the engine may be fitted with a power converter. This device allows a 24V Clean Emissions Module (CEM) to be installed on a 12V engine. If this component fails, the A5:E2 Aftertreatment Controller may log codes related to the ARD nozzle heater.
Table 1
J1939 Code and Description CDL Code and Description Comments
4301-3
Aftertreatment #1 Fuel Injector #1 Heater Control : Voltage Above Normal 3182-3
Aftertreatment #1 Fuel Injector #1 Heater Control : Voltage Above Normal High voltage or an open circuit has been detected in the ARD nozzle heater circuit
4301-4
Aftertreatment #1 Fuel Injector #1 Heater Control : Voltage Below Normal 3182-4
Aftertreatment #1 Fuel Injector #1 Heater Control : Voltage Below Normal Low voltage or a short circuit has been detected in the ARD nozzle heater circuit.
Illustration 1 g03546257
Table 2
Troubleshooting Test Steps Values Results
1. Check the Device that is Used for Circuit Protection
References will be made to system voltage. The system voltage of a typical 12V system is usually 12V to 16V.
The system voltage of a typical 24V system is usually 24V to 28V.
A. Measure the voltage on the supply side of the device that is used for circuit protection. Refer to the application-specific schematic for the location of the circuit protection device.
B. Measure the voltage on the load side of the device that is used for circuit protection.
On industrial engines, refer to the appropriate schematic to determine if a power converter is installed. On these systems the device used for circuit protection is on the 12V side.
12V to 16V on a 12V System
or
24V to 28V on a 24V System
Result: The voltage is equal to system voltage on both sides of the device that is used for circuit protection.
Proceed to Test Step 4.
Result: The voltage is not equal to system voltage on the supply side of the circuit protection device.
Repair: The problem is in the wiring to the battery. Repair the wiring. Proceed to Test Step 11.
Result: The voltage is not equal to system voltage on the load side of the circuit protection device.
Proceed to Test Step 2.
2. Reset the Protection Device
A. Reset the protection device or replace the circuit protection device.
B. Start the engine.
C. Perform the "ARD Nozzle Heater Circuit Test" in Cat ET.
Circuit Protection Device or Circuit
Result: The circuit protection trips.
Proceed to Test Step 3.
Result: The circuit protection does not trip.
Proceed to Test Step 12.
3. Check the ARD Head
A. Turn the key to the OFF position
B. Disconnect the connector to the heater at the ARD head.
C. Reset the protection device or replace the circuit protection device.
D. Start the engine.
E. Perform the "ARD Nozzle Heater Circuit Test" in Cat ET.
ARD Head
Result: The circuit protection trips.
There is a problem in the wiring circuit for the ARD heater. Proceed to Test Step 4.
Result: The circuit protection does not trip.
Repair: Replace the ARD head.
Inspect the coolant supply and return lines to the ARD head for restrictions or blockage.
Proceed to Test Step 11.
4. Check for Output Voltage