44364A 1 Mercruiser BRACKET, MOUNTING - ENGINE (FRONT)

Table 1
Diagnostic Codes Table for Sensor Calibration
J1939 Code CDL Code Code Description
(code descriptions may vary) Comments
411-13 3387-13 Engine Exhaust Gas Recirculation Differential Pressure : Out of Calibration The ECM detects the following conditions:
NRS differential pressure is outside the acceptable range during initialization check, or during sensor calibration when the engine is not running.
The warning lamp will come on and the engine will be derated.
The code is logged.
3358-13 3385-13 Engine Exhaust Gas Recirculation Inlet Pressure : Out of Calibration The ECM detects the following conditions:
The offset between NRS inlet pressure and barometric pressure is outside the acceptable range during initialization check.
The offset between NRS inlet pressure and barometric pressure is outside the acceptable range during sensor calibration when the engine is not running.
The warning lamp will come on and the engine will derate. The code is logged.
3563-13 1785-13 Engine Intake Manifold #1 Absolute Pressure : Out of Calibration The ECM detects the following conditions:
The offset between intake manifold air pressure and barometric pressure is outside the acceptable range during initialization check.
The offset between the intake manifold air pressure and the barometric pressure is outside the acceptable range during sensor calibration with the engine not running.
The warning lamp will come on and the engine will derate.
The code is logged.
3609-13 3464-13 DPF #1 Intake Pressure : Out of Calibration The ECM detects the following conditions:
The offset between DPF intake pressure and barometric pressure is outside the acceptable range during initialization check.
The offset between the intake manifold air pressure and the barometric pressure is outside the acceptable range during sensor calibration with the engine not running.
The warning lamp will come on and the engine will derate.
The code is logged.
3837-13 3493-13 Aftertreatment 1 Secondary Air Pressure : Out of Calibration The ECM detects the following conditions:
The offset between aftertreatment secondary air pressure and barometric pressure is outside the acceptable range during initialization check.
The offset between aftertreatment secondary air pressure and barometric pressure is outside the acceptable range during sensor calibration with the engine not running.
The warning lamp will come on and the engine will derate.
The code is logged. During normal operation, each pressure sensor outputs a signal voltage that accurately represents the pressure that is sensed by the sensor. However, certain circuit conditions can cause a signal voltage to become inaccurate.During each key on event of at least 2 seconds, the Electronic Control Module (ECM) evaluates the signal voltage from each pressure sensor. The ECM compares each signal voltage to a reference voltage. The reference voltage that is used depends on the sensor.If a signal voltage is close to the reference voltage, the ECM will internally adjust the signal voltage. The internal adjustment causes the pressure value for the sensor to be correct. This process is called automatic sensor calibration.If a signal voltage is not close to the reference voltage, the ECM will not internally adjust the signal voltage. The ECM will set a fault code that indicates there is a problem with the signal voltage.During the following procedure, refer to the electrical schematic for the application.Complete the procedure in the order in which the steps are listed.
Table 2
Troubleshooting Test Steps Values Results
1. Check For Active Diagnostic Codes
A. Turn the keyswitch to the OFF position.
B. Connect the electronic service tool to the diagnostic connector.
C. Turn the keyswitch to the ON position. Download the "Product Summary Report" from the engine ECM before performing any troubleshooting or clearing diagnostic trouble codes.
D. Use the electronic service tool to check that coolant temperature, intake manifold air temperature, and NRS temperature are all at least 5° C (41° F).
Note: Wait at least 10 seconds in order for the diagnostic codes to become active.
E. Use the electronic service tool to monitor active diagnostic codes or recently logged diagnostic codes. Look for an active or logged -3 or -4 codes for the pressure sensor or the barometric pressure sensor.
F. Use the electronic service tool to monitor active diagnostic codes or recently logged diagnostic codes. Look for an active or logged -13 code for a pressure sensor or the barometric pressure sensor.
G. Turn the keyswitch to the OFF position.
Diagnostic codes
Result: There are no active diagnostic codes for the pressure sensors.
If there are logged diagnostic codes for the intake manifold pressure sensor, the fault may be intermittent.
Repair: Refer to Troubleshooting, "Electrical Connectors - Inspect" to identify intermittent faults.
Result: One or more of the temperature sensors is reading less than 5° C (41° F).
Proceed to Test Step 4.
Result: There is an active -3 or -4