947545 Volvo.Penta Adjusting washer

Table 1
Diagnostic Trouble Codes for the Engine Temperature Sensors
J1939 Code Description Notes
105-3 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 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 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 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 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 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 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 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 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 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 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 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. Note: The following conditions must exist before any of the above codes will become active:
The ECM has been powered for at least 2 seconds.
Diagnostic code 168-4 is not active.The ECM will log the diagnostic code. If equipped, the warning light will come on.This procedure covers open circuit diagnostic codes and short circuit diagnostic codes that are associated with the following sensors:
Coolant temperature sensor
Intake manifold air temperature sensor
NRS temperature sensor
Fuel temperature sensor
Air inlet temperature sensorThe following background information is related to this procedure:The troubleshooting procedures for the diagnostic codes of each temperature sensor are identical. The temperature sensors have two terminals. The signal line is connected to each sensor connector terminal 1. Terminal 2 is the return line. The signal voltage from terminal 1 of each sensor is supplied to the appropriate terminal in the P2/J2 connector or the P1/J1 connector.Pull-up VoltageThe ECM continuously outputs a pull-up voltage on the circuit for the sensor signal wire. The ECM uses this pull-up voltage in order to detect an open in the signal circuit. When the ECM detects the presence of a voltage that is above a threshold on the signal circuit, the ECM will generate an open circuit diagnostic code (XXX-3) for the sensor.If the sensor is disconnected at the sensor connector, the presence of pull-up voltage at the sensor connector indicates that the wires from the sensor connector to the ECM are not open or shorted to ground. If the sensor is disconnected at the sensor connector, the absence of pull-up voltage at the sensor connector indicates an open in the signal wire or a short to ground. If the sensor is disconnected at the sensor connector and the voltage at the sensor connector is different from pull-up voltage, the signal wire is shorted to another wire in the harness.
Illustration 1 g02041257
Schematic for engine temperature sensors
Illustration 2 g01981034
Typical view of the P2 pin locations for the temperature sensors
(8) NRS temperature sensor signal
(9) Coolant temperature sensor signal
(10) Fuel temperature sensor signal
(19) Intake manifold air temperature sensor signal
(56) Fuel temperature sensor and coolant temperature sensor ground
(57) NRS temperature sensor and intake manifold air temperature sensor ground
Illustration 3 g01981035
Typical view of the P1 pin locations for the temperature