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Table 1
Diagnostic Trouble Codes for Analog Passive Sensors
J1939 Code CDL Code Code Description
(code descriptions may vary) Comments
105-3 172-3 Engine Intake Manifold #1 Temperature : Voltage Above Normal The Electronic Control Module (ECM) detects the following conditions:
The signal voltage from the intake manifold air temperature sensor is greater than 4.95 VDC for more than 8 seconds.
Engine coolant temperature is above −10 °C (15.0 °F).
The ECM will use the default value of 70 °C (158 °F) for the intake manifold air temperature. "Voltage High" will be displayed next to the status for "Intake Manifold Air Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
Poor acceleration under load
White smoke
105-4 172-4 Engine Intake Manifold #1 Temperature : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the intake manifold air temperature sensor is less than 0.2 VDC for more than 8 seconds.
The ECM will use the default value of 70 °C (158°F) for the intake manifold air temperature. "Voltage Low" will be displayed next to the status for "Intake Manifold Air Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
Poor acceleration under load
White smoke
110-3 110-3 Engine Coolant Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the engine coolant temperature sensor is greater than 4.95 VDC for more than 8 seconds.
An active diagnostic code will be generated after 8 seconds.
The ECM will default to 90 °C (194 °F) for engine coolant temperature. "Voltage Above Normal" will be displayed next to the status for "Engine Coolant Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
White smoke
110-4 110-4 Engine Coolant Temperature : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the engine coolant temperature sensor is less than 0.2 VDC for more than 8 seconds.
An active diagnostic code will be generated after 8 seconds. The diagnostic code will be logged if the engine has been operating for more than 7 minutes.
The ECM will default to 90 °C (194 °F) for engine coolant temperature. "Voltage Below Normal" will be displayed next to the status for "Engine Coolant Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
White smoke
172-3 2526-3 Engine Air Inlet Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the air inlet temperature sensor is greater than 4.95 VDC for at least 8 seconds.
172-4 2526-4 Engine Air Inlet Temperature : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the air inlet temperature sensor is less than 0.2 VDC for at least 8 seconds.
174-3 174-3 Engine Fuel Temperature 1 : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the fuel temperature sensor is greater than 4.95 VDC for more than 8 seconds.
The ECM will default to 40° C (104° F) for fuel temperature. "Voltage Above Normal" will be displayed next to the status for "Engine Fuel Temperature" on the electronic service tool.
174-4 174-4 Engine Fuel Temperature 1 : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the fuel temperature sensor is less than 0.2 VDC for more than 8 seconds.
The ECM will default to 40° C (104° F) for fuel temperature. "Voltage Below Normal" will be displayed next to the status for "Engine Fuel Temperature" on the electronic service tool.
412-3 3386-3 Engine Exhaust Gas Recirculation Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the Nox Reduction System (NRS) temperature sensor is greater than 4.975 VDC for more than 8 seconds.
412-4 3386-4 Engine Exhaust Gas Recirculation Temperature : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the NRS temperature sensor is less than 0.2 VDC for more than 8 seconds.
441-3 1836-3 Auxiliary Temperature #1 : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the auxiliary temperature sensor is greater than 4.95 VDC for more than 8 seconds.
441-4 1836-4 Auxiliary Temperature #1 : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the auxiliary temperature sensor is less than 0.2 VDC for more than 8 seconds.
2775–3 4519–3 Engine Fuel Supply Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the fuel temperature sensor is greater than 4.95 VDC for more than 8 seconds.
2775–4 4519–4 Fuel Temperature Sensor : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the fuel temperature sensor is less than 0.2 VDC for more than 8 seconds.
3242-3 2452-3 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the DPF inlet temperature sensor is greater than 4.95 VDC for more than 8 seconds.
An active diagnostic code will be generated after 8 seconds. The diagnostic code will be logged if the engine has been operating for more than 7 minutes.
"Voltage Above Normal" will be displayed next to the status for "DPF Inlet Temperature" on the electronic service tool.
3242-4 2452-4 Aftertreatment #1 DPF Intake Gas Temperature : Voltage Below Normal The ECM detects the following conditions:
The signal voltage from the DPF inlet temperature sensor is less than 0.2 VDC for more than 8 seconds.
An active diagnostic code will be generated after 8 seconds. The diagnostic code will be logged if the engine has been operating for more than 7 minutes.
"Voltage Below Normal" will be displayed next to the status for "DPF Inlet Temperature" on the electronic service tool.
4360-3 3105-3 Aftertreatment #1 SCR Catalyst Intake Gas Temperature : Voltage Above Normal The ECM detects the following conditions:
The signal voltage from the SCR inlet temperature sensor is greater than 4.95 VDC for more than 8 seconds.
An active diagnostic code will be generated after 8 seconds. The diagnostic code will be logged if the engine has been operating for more than 7 minutes.
"Voltage Above Normal" will be displayed next to the status for "SCR Inlet Temperature" on the