42070 Mercruiser HOSE, TEE TO RESERVOIR

Table 1
J1939 Code and Description Comments
51-9
Engine Throttle Position : Abnormal Update Rate The ECM is not communicating properly with the throttle actuator over the CAN data link.
The code is logged.
173-9
Engine Exhaust Gas Temperature : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Global CAN data link.
The code is logged.
898-9
Engine Requested Speed/Speed Limit : Abnormal Update Rate The "Desired Speed Input Configuration" must be set to "CAN" for the code to be set.
The ECM is not communicating properly with the Operator Control Panel (OCP) over the CAN data link.
The code is logged.
1180-9
Engine Turbocharger #1 Turbine Intake Temperature : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
1181-9
Engine Turbocharger #2 Turbine Intake Temperature : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
1184-9
Engine Turbocharger #1 Turbine Outlet Temperature : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
1185-9
Engine Turbocharger #2 Turbine Outlet Temperature : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
1442-9
Engine Fuel Valve #1 Position : Abnormal Update Rate The ECM is not communicating properly with the fuel metering valve.
The code is logged.
2241-9
Source Address 241 : Abnormal Update Rate(1) The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
2452-9
Generator Total Real Power : Abnormal Update Rate The ECM is not receiving generator power sensor information from the EMCP.
The code is logged.
3216-9
Aftertreatment #1 NOx : Abnormal Update Rate The ECM is not communicating properly with the NOx sensor.
The code is logged.
3542-9
Requested Engine Control Mode : Abnormal Update Rate The "Engine State Control Input Configuration" must be set to "CAN" for the code to be set.
The ECM is not communicating properly with the EMCP over the CAN data link.
The code is logged.
3470-9
Engine Turbocharger Compressor Control : Abnormal Update Rate The ECM is not communicating properly with the compressor bypass actuator over the CAN data link.
The code is logged.
4490-9
Specific Humidity : Abnormal Update Rate The ECM is not communicating properly with the ISM over the Local CAN data link.
The code is logged.
(1) Integrated Sensing Module (ISM) data linkIf Cat® Electronic Technician (ET) will not communicate with the ECM, refer to Troubleshooting, "Electronic Service Tool Does Not Communicate" before you begin this procedure. The procedure will verify that electrical power is being supplied to the ECM and to the service tool connector.The data links are used to communicate information between the engine ECM and other control modules that are a part of the application. Cat ET also communicates with the ECM via the data links.The service tool connector contains connections for electrical power and for the data links.Cat ET may display the following error message:"The version of the ECM is not recognized and the integrity of the changed parameters and displayed data is not guaranteed."This message indicates one of the following conditions:
The flash file in the ECM is newer than the version of Cat ET.
The latest version of Cat ET has not been installed.-9 Detected Problems
Loss of device battery power or ground
Loss of device keyswitch power supply
An invalid configuration parameter
Software incompatibility between two or more ECM's on the network
Hardware incompatibility between CAN-based system components
Damaged CAN data link wiring
Missing or damage terminating resistorsNOx Sensor Power Supply Enablement ConditionsA Cat ET service test, for overriding the power supply may be available for diagnostic testing purposes. If an override is unavailable, starting, and running the engine in accordance with the sensor buffer power-on requirements will be necessary.The buffer is powered by the ECM after the following conditions are verified:
No diagnostic codes related to the NOX sensor are active
Engine speed above 500 rpm
Engine accumulated run time duration up to 3 minutes to remove moisture from sensor.
The calculated power on delay time has expired.An active diagnostic code is probably caused by a problem with a connector or harness for the CAN data link or the power supply. The next likely cause is a problem with the NOX sensor group. The least likely cause is a problem with the ECM.
Table 2
Component Electrical Checkout
NOx Sensor ET Service Test Override Parameter for the NOx sensor power supply
Illustration 1 g06123547
For the complete circuit details, refer to the full schematic.
Illustration 2 g06123566
For the complete circuit details, refer to the full schematic.
Table 3
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Determine if a code is active or logged.
Codes
Result: A -9 code is active or logged.
Proceed to Test Step 2.
2. Check for Battery Voltage at the Affected Component
A. Turn the power to the ON position.
B. Measure the voltage between the following terminals on the wiring harness connector for the affected component:
- Battery (+) and Battery (-)
- Keyswitch Power (+) and Battery (-)
NOx sensor specific information: If available, activate the Cat ET service override for the NOx sensor power supply. If unavailable, start the engine and run in accordance with NOx sensor power supply enablement conditions listed in the beginning of this procedure.
Battery Voltage
Result: Both of the following are true:
- Battery voltage was measured between Battery (+) and Battery (-)
- Battery voltage was measured between Keyswitch Power (+) and Battery (-)
Proceed to Test Step 3.
Result: Either of the following are true:
- Battery voltage was not measured between Battery (+) and Battery (-)
- Battery voltage was not measured between Keyswitch Power (+) and Battery (-)
There is an open or a short in the wiring harness. There may be a problem with the keyswitch relay, or relay coil battery (+) or battery (-).
Repair: Repair or replace the wiring harness or keyswitch relay.
Proceed to Test Step 4.
3. Check the Termination Resistors for the J1939 Data Link
A. Turn the main disconnect switch to the OFF position.
B. At the affected component, measure the resistance between the fo