11938M Mariner DECAL, SIDE SET (8M)

Table 1
Diagnostic Codes Table
Description Conditions which Generate this Code System Response
94-3 Fuel Pressure open/short to +batt 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 −40 °C (−40 °F).
94-4 Fuel Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
100-3 Engine Oil Pressure open/short to +batt 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 500 kPa (75 psi).
100-4 Engine Oil Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
101-3 Crankcase Pressure open/short to +batt 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.
101-4 Crankcase Pressure short to ground 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 open/short to +batt 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 −40 °C (−40 °F).
110-4 Engine Coolant Temperature short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
273-3 Turbo Outlet Pressure open/short to +batt 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 Turbo Outlet Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
274-3 Atmospheric Pressure open/short to +batt 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 45 kPa (6.5 psi).
274-4 Atmospheric Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
275-3 Right Turbo Inlet Pressure open/short to +batt 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 45 kPa (6.5 psi).
275-4 Right Turbo Inlet Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
276-3 Left Turbo Inlet Pressure open/short to +batt 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 45 kPa (6.5 psi).
276-4 Left Turbo Inlet Pressure short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
179-3 Aftercooler Temperature open/short to +batt 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 −40 °C (−40 °F).
279-4 Aftercooler Temperature short to ground The ECM detects signal voltage that is below normal for one second.
The ECM has been powered for three seconds.
542-3 Unfiltered Engine Oil Pressure open/short to +batt 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 500 kPa (75 psi).
542-4 Unfiltered Engine Oil Pressure short to ground 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:
Aftercooler temperature sensor
Atmospheric pressure sensor
Coolant temperature sensor
Crankcase pressure sensor
Filtered engine oil pressure sensor
Filtered fuel pressure sensor
Turbocharger outlet pressure sensor
Left turbocharger inlet pressure sensor
Right turbocharger inlet pressure sensor
Unfiltered engine oil pressure sensor
Unfiltered fuel 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. When the ECM detects the presence of a voltage that is above the normal range of the sensor on the signal circuit, the ECM will generate an open circuit diagnostic code -3 for that sensor. When the ECM detects the absence of the pull-up voltage on the signal circuit, the ECM will generate a short circuit diagnostic code -4 for that sensor. 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.
Illustration 1 g01227792
Typical schematic
Illustration 2 g01227833
Locations of the analog sensors (typical left side engine view)
(1) Coolant temperature sensor
(2) Left turbocharger inlet pressure sensor
(3) Aftercooler temperature sensor
(4) Turbocharger outlet pressure sensor
(5) Atmospheric pressure sensor
(6) J1/P1 ECM connector
(7) J2/P2 ECM connector
(8) Crankcase pressure sensor
Illustration 3 g01227862
Right side view
(9) Right turbocharger compressor inlet