821854T 6 Mercury CARBURETOR, (WME 57-3) (Bottom)(55/60 Manual)

Table 1
Diagnostic Codes Table
J1939 Code and Description Conditions which Generate this Code System Response
173-9 Engine Exhaust Gas Temperature : Abnormal Update Rate The Electronic Control Module (ECM) has not received several messages that were expected from the exhaust temperature module over the CAN data link. The code is logged.
The alarm output is activated.
1137-19 Engine Exhaust Gas Port 1 Temperature : Data Error
1138-19 Engine Exhaust Gas Port 2 Temperature : Data Error
1139-19 Engine Exhaust Gas Port 3 Temperature : Data Error
1140-19 Engine Exhaust Gas Port 4 Temperature : Data Error
1141-19 Engine Exhaust Gas Port 5 Temperature : Data Error
1142-19 Engine Exhaust Gas Port 6 Temperature : Data Error
1143-19 Engine Exhaust Gas Port 7 Temperature : Data Error
1144-19 Engine Exhaust Gas Port 8 Temperature : Data Error
1145-19 Engine Exhaust Gas Port 9 Temperature : Data Error
1146-19 Engine Exhaust Gas Port 10 Temperature : Data Error
1147-19 Engine Exhaust Gas Port 11 Temperature : Data Error
1148-19 Engine Exhaust Gas Port 12 Temperature : Data Error The exhaust temperature module has detected a problem with the applicable exhaust temperature sensor. The code is logged.
The alarm output is activated.
Illustration 1 g02713997
Exhaust temperature module
The exhaust temperature module is an electronic monitoring system used to monitor exhaust temperatures. The module monitors the following thermocouples:
Thermocouple for the exhaust port of each cylinder
Thermocouple at the inlet of the turbocharger turbineThe module reads each of these temperatures and sends this information via the CAN data link to the ECM and the optional remote control panel.If the ECM cannot communicate with the exhaust temperature module, the ECM activates a diagnostic code related to identify the problem. The most likely cause of the diagnostic code is a problem with an electrical connector or a harness. The next likely cause is a problem with the exhaust temperature module.Terminating resistors must be connected to each end of the CAN data link. The terminating resistors improve the communication signal between the devices. If there is an intermittent diagnostic code for any of the devices connected to the CAN data link, check the terminating resistors. One of the terminating resistors is in the control panel. The other terminating resistor is inside the ECM control box. If the engine is not equipped with a remote panel, the other terminating resistor will be connected at the far end of interconnect harness. Refer to Troubleshooting, "CAN Data Link - Test" for details related to troubleshooting the data link circuit.This troubleshooting procedure may generate additional diagnostic codes. Correct the cause of the original diagnostic code before continuing. You clear the diagnostic codes after the problem is resolved.
Illustration 2 g02407618
Schematic for the circuit of the exhaust temperature module
Illustration 3 g02407877
Location of the components for the exhaust temperature module (front left engine view)
(1) ECM control box
(2) Exhaust temperature module Test Step 1. Inspect the Electrical Connectors and the Wiring
Remove the electrical power from the engine.
Illustration 4 g02408098
Locations of the connectors for the CAN data link at the ECM junction box (typical left side engine view)
(3) J1/P1 ECM
(4) Engine harness connectors for the CAN data link circuit
Thoroughly inspect the condition of connectors for exhaust temperature module (2). Also, thoroughly inspect the condition of ECM connectors (3) and engine harness connectors (4). Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 5 g01391850
Terminal locations at the P1 ECM connectors for the CAN data link
(34) CAN data link −
(42) Shield
(50) CAN data link +
Illustration 6 g02408107
Terminal locations at the engine harness connector that are for the CAN data link
(Terminal 33) CAN data link +
(Terminal 34) CAN data link −
(Terminal 35) CAN shield
Illustration 7 g01779893
Terminal locations at the connector for the exhaust temperature module
(Terminal 5) CAN shield
(Terminal 6) +Battery
(Terminal 7) −Battery
(Terminal 8) CAN data link +
(Terminal 9) CAN data link −
Perform a 45 N (10 lb) pull test on each of the wires in the circuit for each of the exhaust temperature sensors.
Check the torque of the allen head screws for each of the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from the battery to the ECM control box. Check that the fuses for the circuit are not blown. Expected Result:All of the connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - The components are in good repair with proper connections. Proceed to Test Step 2.
Not OK - The components are not in good repair and/or at least one connection is improper.Repair: Perform the necessary repairs and/or replace parts, if necessary. Ensure that all of the seals are properly installed. Ensure that the connectors are properly engaged. Verify that the repair has eliminated the original problem.STOPTest Step 2. Check for Diagnostic Co