COVER ASSEM. 8P8107 - Caterpillar

Table 1
Diagnostic Codes for NRS Exhaust Gas Temperature Is High
J1939 Code CDL Code Description
(code descriptions may vary) Notes
412-15 E1092 (1) Engine Exhaust Gas Recirculation Temperature : High - least severe Engines equipped with a Diesel Particulate Filter (DPF) : The exhaust gas temperature in the NRS has reached 178° C (352° F) for 8 seconds.
Engines not equipped with a DPF : The exhaust gas temperature in the NRS has reached 198° C (388° F) for 8 seconds.
The ECM has been powered for at least 2 seconds.
The engine has been running for at least 180 seconds.
There are no electrical faults on the circuit.
412-16 E1092 (2) Engine Exhaust Gas Recirculation Temperature : High - moderate severity Engines equipped with a DPF : The exhaust gas temperature in the NRS has reached 180° C (356° F) for 8 seconds.
Engines not equipped with a DPF : The exhaust gas temperature in the NRS has reached 200° C (392° F) for 8 seconds.
The engine will be derated.
The ECM has been powered for at least 2 seconds.
The engine has been running for at least 180 seconds.
There are no electrical faults on the circuit.
Illustration 1 g03703137
Components of the NRS cooler
(1) NRS Exhaust outlet pipe
(2) Coolant inlet pipe
(3) NRS cooler
(4) Coolant outlet pipe
(5) NRS Exhaust inlet pipe
Table 2
Associated Codes
J1939 Code CDL Code Description
(code descriptions may vary)
110-15 E361 (1) Engine Coolant Temperature : High - least severe
110-16 E361 (2) Engine Coolant Temperature : High - moderate severity
110-0 E361 (3) Engine Coolant Temperature : High - most severe Probable Causes
Diagnostic codes
Coolant leak or low coolant level
NRS coolerRecommended Actions
Do not crank the engine continuously for more than 30 seconds. Allow the starting motor to cool for two minutes before cranking the engine again.
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 3
Troubleshooting Test Steps Values Results
1. Diagnostic Codes
A. Download the Warranty Report and the Product Status Report with Histograms before troubleshooting or clearing any diagnostic codes.
Note: The downloaded information will be required by the Dealer Solutions Network (DSN) if troubleshooting assistance is needed.
B. Use the electronic service tool to check for active or logged codes.
Diagnostic codes
Result: A 412-X (E1092) code and a 110-X (E361) code are present.
Repair: Rectify the 110-X (E361) code. Refer to Troubleshooting, "Coolant Temperature Is High".
Result: A 412-X (E1092) code is present.
Proceed to Test Step 2.
2. Check Coolant Level
A. Check the coolant level. Refer to the Operation and Maintenance Manual, Coolant Level - Check.
Coolant level
Result: The coolant level is low or a leak is identified.
Repair: Repair the coolant leak and replenish the coolant system.
Result: The coolant level is correct.
Proceed to Test Step 3.
3. Inspect the NRS Cooler for Leaks
Refer to Illustration 1.
A. Perform a leak test on the NRS cooler. Refer to Systems Operation, Testing, and Adjusting, "Exhaust Cooler (NRS) - Test".
NRS cooler
Result: The NRS cooler has internal leakage.
Repair: Replace the NRS cooler. Refer to Disassembly and Assembly, "Exhaust Cooler (NRS) - Remove and Install".
Use the electronic service tool to clear all related diagnostic codes and then run the engine and