i07797273
Sensor Signal (Analog,
Passive) - Test
This procedure covers the following diagnostic
codes:
Table 213
Diagnostic Trouble Codes for Analog Passive Sensors
J1939 Code PDL 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. “Volt-
age 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
(continued)
390 UENR4469-36
Circuit Tests
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