16231 Mercury GROMMET, STARTER LOCK ROD

Table 1
Diagnostic Codes Table    
Code    Conditions which Generate this Code    System Response    
101-3 Crankcase Air Pressure Sensor : Voltage Above Normal     The Electronic Control Module (ECM) detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to zero.    
101-4 Crankcase Air Pressure Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for at least three seconds.    
110-3 Engine Coolant Temperature Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
110-4 Engine Coolant Temperature Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
273-3 Turbocharger Outlet Pressure Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to zero.    
273-4 Turbocharger Outlet Pressure Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
274-3 Atmospheric Pressure Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
274-4 Atmospheric Pressure Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
275-3 Right Turbocharger Inlet Pressure Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
275-4 Right Turbocharger Inlet Pressure Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
276-3 Left Turbocharger Inlet Pressure Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
276-4 Left Turbocharger Inlet Pressure Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
542-3 Engine Oil Pressure Sensor - Before Oil Filter : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
542-4 Engine Oil Pressure Sensor - Before Oil Filter : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
543-3 Engine Oil Pressure Sensor - After Oil Filter : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The value of the parameter is set to a default value.    
543-4 Engine Oil Pressure Sensor - After Oil Filter : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    
829-3 Rear Aftercooler Coolant Temperature Sensor : Voltage Above Normal     The ECM detects signal voltage that is above normal for one second.
The ECM has been powered for at least three seconds.     The code is logged.
The ECM flags the aftercooler temperature as invalid data.    
829-4 Rear Aftercooler Coolant Temperature Sensor : Voltage Below Normal     The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.    System OperationUse this procedure to troubleshoot any suspect problems with the following sensors:
Atmospheric pressure sensor
Coolant temperature sensor
Rear aftercooler temperature sensor
Crankcase pressure sensor
Filtered engine oil pressure sensor
Left turbocharger inlet pressure sensor
Right turbocharger inlet pressure sensor
Turbocharger outlet pressure sensor
Unfiltered engine oil pressure sensorThe supply voltage is routed to terminal A of each sensor connector. The sensor return is routed to terminal B of each sensor connector. The sensor signal is routed to terminal C of each sensor connector. The ECM provides short circuit protection for the internal power supply. A short circuit to the battery will not damage the internal power supply.The ECM performs an automatic calibration of these sensors whenever the ECM is powered and the engine is off for at least five seconds. During an automatic calibration, the ECM calibrates pressure sensors to the value of the atmospheric pressure sensor and against an acceptable offset pressure range.The ECM continuously outputs a pull-up voltage on the input terminal from an analog sensor. The ECM uses this pull-up voltage in order to detect an open or a short in the signal circuit. Voltage above the normal range will cause the ECM to generate an open circuit diagnostic code -3 for that sensor. No pull-up voltage on the signal circuit will cause the ECM to generate a short circuit diagnostic code -4 for that sensor. If pull-up voltage is measured at the sensor connector, the wires from the sensor connector to the ECM are not open or shorted to ground.
Illustration 1 g02580342
Typical schematic
Illustration 2 g01234146
Location of ECM connectors
Illustration 3 g02580439
P1 ECM connector (P1-2) 5 V sensor supply (P1-3) Sensor return (P1-6) Aftercooler temperature sensor (P1-7) Coolant