850221A 2 Mercury HARNESS-IGNITION

Table 1
Diagnostic Codes for a Switch Input That is Programmed to a J1939 Device
Diagnostic Trouble Code Conditions Which Can Cause the Code
69-9 Two Speed Axle Switch : Abnormal Update Rate The engine ECM is receiving no information about the switch input from the J1939 device. This code is caused by one of the following conditions:
The switch input is programmed to the wrong J1939 device. This is the most likely cause of the code if there is only one -9 code.
The switch input is programmed to the correct J1939 device. However, there is a problem with the J1939 device.
There is a problem with wiring for the J1939 data link between the engine ECM and the J1939 device. There may be a problem inside an electrical connector.
70-9 Parking Brake Switch : Abnormal Update Rate
171-9 Parking Brake Switch : Abnormal Update Rate
524-9 Transmission Selected Gear : Abnormal Update Rate
596-9 Cruise Control Enable Switch : Abnormal Update Rate
597-9 Brake Switch : Abnormal Update Rate
598-9 Clutch Switch : Abnormal Update Rate
599-9 Cruise Control Set Switch : Abnormal Update Rate
600-9 Cruise Control Coast (Decelerate) Switch : Abnormal Update Rate
601-9 Cruise Control Resume Switch : Abnormal Update Rate
602-9 Cruise Control Accelerate Switch : Abnormal Update Rate
979-9 Engine Remote PTO Preprogrammed Speed Control Switch : Abnormal Update Rate
973-9 Engine Retarder Selection : Abnormal Update Rate
980-9 Engine PTO Enable Switch : Abnormal Update Rate
982-9 Engine PTO Resume Switch : Abnormal Update Rate
984-9 Engine PTO Set Switch : Abnormal Update Rate
985-9 A/C High Pressure Fan Switch : Abnormal Update Rate
986-9 Requested Percent Fan Speed : Abnormal Update Rate
1633-9 Cruise Control Pause Switch : Abnormal Update Rate
3695-9 Diesel Particulate Filter Regeneration Inhibit Switch : Abnormal Update Rate
3696-9 Diesel Particulate Filter Regeneration Force Switch : Abnormal Update Rate
69-19 Two Speed Axle Switch : Data Error A switch input is programmed to the correct J1939 device. The engine ECM is receiving information about the switch. This code is caused by one of the following conditions:
There is a problem with the J1939 device. The device may be programmed incorrectly.
There is a problem with the switch.
There is a problem with the wiring between the J1939 device and the switch.
70-19 Parking Brake Switch : Data Error
171-19 Ambient Air Temperature : Data Error
524-19 Transmission Selected Gear : Data Error
596-19 Cruise Control Enable Switch : Data Error
597-19 Brake Switch : Data Error
598-19 Clutch Switch : Data Error
599-19 Cruise Control Set Switch : Data Error
600-19 Cruise Control Coast (Decelerate) Switch : Data Error
601-19 Cruise Control Resume Switch : Data Error
602-19 Cruise Control Accelerate Switch : Data Error
973-19 Engine Retarder Selection : Data Error
979-19 Engine Remote PTO Preprogrammed Speed Control Switch : Data Error
980-19 Engine PTO Enable Switch : Data Error
982-19 Engine PTO Resume Switch : Data Error
984-19 Engine PTO Set Switch : Data Error
985-19 A/C High Pressure Fan Switch : Data Error
986-19 Requested Percent Fan Speed : Data Error
1633-19 Cruise Control Pause Switch : Data Error
3695-19 Diesel Particulate Filter Regeneration Inhibit Switch : Data Error
3696-19 Diesel Particulate Filter Regeneration Force Switch : Data Error
1321-14Engine Starter Solenoid Lockout Relay Driver Circuit - Special Instruction The Transmission Neutral Start Interlock parameter is set to Enabled and the engine does not receive a Crank Enable value of 0 or 1 from the transmission via the J1939 datalink.
The Engine Running Output is not set to pin 29, 30, or 31.
There is a problem with the wiring between the J1939 device and the ECM. Illustration 1 shows the portion of the system that can cause each diagnostic trouble code.
Illustration 1 g01416735
The portion of the J1939 data link that can cause each diagnostic trouble code
The following information will be helpful as you perform this procedure.
The J1939 devices that are installed on the vehicle
The list of switches that are connected to each J1939 deviceTest Step 1. Determine the Failure Mode IdentifierDetermine the type of code.Expected Result:There is a -9 code.Results:
There is a -9 code. - The engine ECM is receiving no information about the switch.Repair: Perform the following procedure:
Verify that the switch input is programmed to the correct J1939 device. Program the switch input to every possible J1939 device if you do not know the vehicle configuration. Wait for a few seconds after the switch input is programmed to a J1939 device. Then, determine if the -9 code is gone.Continue with this procedure, if necessary.
If programming the switch input does not solve the problem, there may be a problem with the J1939 device. Check for the following conditions:
The J1939 device is receiving electrical power.
The J1939 device is programmed correctly.Refer to the troubleshooting information for the J1939 device. Make the necessary repairs.
Check the wiring for the J1939 data link. The