GASKET 1265870 - Caterpillar

The Electronic Control Module (ECM) monitors the intake manifold air for excessive temperature. The following event codes are associated with high intake manifold air temperature:
Table 1
Diagnostic Trouble Codes for High Intake Manifold Air Temperature
J1939 Code CDL Code Code Description
(Code descriptions may vary) Comments
105-15 E539 (1) Engine Intake Manifold #1 Temperature : High - least severe (1) The engine has been running for 3 minutes.
No other 105 codes are active.
168 codes are not active.
Code 412-16 is not active.
The intake manifold air temperature exceeds the value that is programmed into the ECM for 8 seconds. The code is logged.
This code will be reset when the temperature is less than 122° C (252° F) for 4 seconds.
105-16 E539 (2) Engine Intake Manifold #1 Temperature : High - Moderate Severity (2) The engine has been running for 3 minutes.
No other 105 codes are active.
168 codes are not active.
Code 412-16 is not active.
The intake manifold air temperature exceeds the value that is programmed into the ECM for 8 seconds. The engine will be derated. The code is logged.
This code will be reset when the temperature is less than 124° C (255° F) for 20 seconds. Probable Causes
Coolant level
Air-to-air aftercooler (ATAAC)
Cooling fan
Air inlet and exhaust system
Exhaust Back Pressure Regulator (EBPR)
Ambient temperature
Altitude
Running conditionRecommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in order.
Table 2
Troubleshooting Test Steps Values Results
1. Coolant Level
A. Check that the coolant is filled to the correct level.
Note: If the coolant level is too low, air will get into the cooling system. Air in the cooling system will cause a reduction in coolant flow.
Coolant
Result: The coolant level is low.
Repair: Fill the coolant system to the correct level. Refer to the Operation and Maintenance Manual, "Coolant Level - Check".
Result: The coolant level is OK.
Proceed