804126 Mercury SCREW

Table 1
Diagnostic Codes
J1939 Code and Description Conditions which Generate this Code System Response
110-3 Engine Coolant Temperature : Voltage Above Normal The engine Electronic Control Module (ECM) detects signal voltage that is greater than 4.95 VDC for 8 seconds. The code is logged after 7 minutes.
The value of the parameter is set to 90 °C (194 °F).
The engine will not enter cold mode while the code is active.
110-4 Engine Coolant Temperature : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. The code is logged.
The value of the parameter is set to 90 °C (194 °F).
The engine will not enter cold mode while the code is active.
105-3 Engine Intake Manifold #1 Temperature : Voltage Above Normal The ECM detects signal voltage that is greater than 4.95 VDC for 8 seconds. Ambient temperature must be greater than −35 °C (−31 °F) in order to allow diagnostic to log.
The value of the parameter is set to 85 °C (185 °F).
105-4 Engine Intake Manifold #1 Temperature : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. Ambient temperature must be less than 140 °C (284 °F) in order to allow diagnostic to log.
The value of the parameter is set to 85 °C (185 °F).
174-3 Engine Fuel Temperature 1 : Voltage Above Normal The ECM detects signal voltage that is greater than 4.95 VDC for 8 seconds. Engine coolant temperature must be above −10 °C (14 °F) in order to allow diagnostic to log.
The value of the parameter is set to the value of the engine coolant temperature.
174-4 Engine Fuel Temperature 1 : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. The code is logged.
The value of the parameter is set to the value of the engine coolant temperature.
175-3 Engine Fuel Temperature 1 : Voltage Below Normal The ECM detects signal voltage that is greater than 4.95 VDC for 8 seconds. Ambient temperature must be greater than −35 °C (−31 °F) in order to allow diagnostic to log.
The value of the parameter is set to the value of the engine coolant temperature.
175-4 Engine Oil Temperature 1 : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. The code is logged.
The value of the parameter is set to the value of the engine coolant temperature.
1131-3 Engine Intake Manifold #2 Temperature : Voltage Above Normal The ECM detects signal voltage that is greater than 4.95 VDC for 8 seconds. The code will not be logged if the actual temperature is below −30 °C (−22 °F). The code may be active or the logged code may be pending until this temperature is reached.
The value of the parameter is set to the value of the other intake manifold temperature sensor. If both sensor signals are lost, a value of 85 °C (185 °F) will be used.
1131-4 Engine Intake Manifold #2 Temperature : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. Ambient temperature must be less than 140 °C (284 °F) in order to allow diagnostic to log. The code may be active or the logged code may be pending until this temperature is reached.
The value of the parameter is set to the value of the other intake manifold temperature sensor. If both sensor signals are lost, a value of 85 °C (185 °F) will be used.
3468-3 Engine Fuel Temperature 2 : Voltage Above Normal The ECM detects signal voltage that is greater than 4.95 VDC for 8 seconds. Ambient temperature must be greater than −35 °C (−31 °F) in order to allow diagnostic to log.
The value of the parameter is set to the value of the engine coolant temperature.
3468-4 Engine Fuel Temperature 2 : Voltage Below Normal The ECM detects signal voltage that is less than 0.2 VDC for 8 seconds. Ambient temperature must be less than 140 °C (284 °F) in order to allow diagnostic to log.
The value of the parameter is set to the value of the engine coolant temperature. System OperationUse this procedure to troubleshoot any suspect problems with the following sensors:
Coolant temperature sensor for the engine block outlet
Fuel temperature sensor for the low-pressure fuel
Intake manifold temperature sensor
Oil temperature sensor
Sensor for the turbocharger compressor inlet temperature
Temperature sensor at the water pump outlet for the SCAC
Temperature sensor for the high-pressure fuel systemThe sensor signal for the passive sensors is routed to terminal 1 of each sensor connector. The sensor return for the passive sensors is routed from the ECM terminal 2 of each sensor connector.
Illustration 1 g03306076
Schematic for the analog sensors
Illustration 2 g02796357
Locations of the passive sensors (right side engine view)
(1) Intake manifold temperature sensor
(2) Temperature sensor at the water pump outlet for the SCAC
(3a) Fuel temperature sensor for the low-pressure fuel (new location)
(3b) Fuel temperature sensor for the low-pressure fuel (old location)
(4) Temperature sensor for the high-pressure fuel system
Illustration 3 g01283131
Locations of the passive sensors (front side engine view)
(5) Coolant temperature sensor for the engine block outlet
(6) Engine coolant temperature sensor for the Temperature Control Module (TCM)
Illustration 4 g03307056
Locations of the passive sensors (top side engine view)
(7) Electronic Control Module (ECM)
(8) J1/P1 ECM connector
(9) J2/P2 ECM connector
(10) Right rail connector
(11) Left rail connector
(12) Control box connector for the front harness connector
Illustration 5 g03309296
Terminal locations at the P1 ECM connector for the analog sensors
(P1-3) Analog return
(P1-17) Turbo comp inlet temperature
(P1-26) Engine oil temperature