D6T Track-Type Tractor Electronic Control Systems Caterpillar

Diagnostic Code List

Usage:

Use the Caterpillar Monitoring system or the Caterpillar Electronic Technician (Cat ET) in order to determine the diagnostic codes for the electronic control modules (ECM). After determining the diagnostic codes, refer to the corresponding test procedure for more information. Perform the procedure that corresponds to the Module Identifier (MID), the Component Identifier (CID) and the Failure Mode Identifier (FMI) of the diagnostic code.

Module Identifier (MID)

The module identifier (MID) identifies the electronic control module that detected the fault. Each electronic control module on the machine has a unique MID. Use the following chart in order to match the MID for each diagnostic code to a specific ECM. The chart for the Module Identifier (MID) is also located on the Electrical System Schematic for your machine. Refer to the chart if the MID is not shown on the display of your machine. Refer to the service manual module for that particular ECM for more troubleshooting information once the fault has been identified. The service manual for each ECM is part of the Service Manual.

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Table 1
Description of the Module Identifiers
MID	Description
036	Engine ECM
082	Implement ECM
113	Power Train ECM

Component Identifier (CID)

The following tables are lists of possible diagnostic codes for the electronic control modules.

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Table 2
Diagnostic Codes for the Implement ECM MID 082
Perform the procedure that corresponds to the CID and the FMI of the diagnostic code during troubleshooting.
CID and FMI	Description of failure
CID 0096 Fuel Level Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0168 Electrical System Voltage
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0247 SAE J1939 Data Link
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0248 Cat Data Link
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0262 5 V Power Supply
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0296 Transmission Control
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0490 Implement Lockout Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0497 Tilt Right Solenoid
FMI 03	Voltage above normal or shorted high
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 0498 Tilt Left Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 0590 Engine Control Module
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0600 Hydraulic Oil Temperature Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0874 Mode Select Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0875 Manual Select Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0880 Ripper Raise/Lower Lever Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 0882 Implement Lockout Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 0888 Ripper Shank Lower Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 0889 Ripper Shank Raise Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1078 Blade Control Handle Lift Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 1079 Blade Control Handle Tilt Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 1197 Blade Lower Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1198 Blade Raise Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1298 All Implement Solenoids
FMI 13	Calibration required
CID 1326 ECM Location Code
FMI 02	Data is erratic, intermittent, or incorrect
CID 1450 Main Hydraulic Pump Oil Pressure Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 1482 10 V Power Supply
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 1870 Blade Control Handle Thumb Rocker Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal frequency, Pulse width, or Period
FMI 13	Calibration required
CID 1874 Winch Lockout Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 1881 Winch Control Handle Spool In/Out Position Sensor
FMI 03	Voltage Above Normal
FMI 04	Voltage Below Normal
FMI 08	Abnormal frequency, Pulse width, or Period
CID 1884 Winch Spool In Solenoid
FMI 03	Voltage Above Normal
FMI 05	Current Below Normal
FMI 06	Current Above Normal
CID 1885 Winch Spool Out Solenoid
FMI 03	Voltage Above Normal
FMI 05	Current Below Normal
FMI 06	Current Above Normal
CID 1933 Blade Angle Left Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1934 Blade Angle Right Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 2114 Blade Control Handle Trigger Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 2204 Auxiliary Lever #1 Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 2205 Auxiliary Lever #2 Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 2206 Auxiliary Lever #3 Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
FMI 13	Calibration required
CID 2211 Auxiliary Valve #1 Port B Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 2212 Auxiliary Valve #1 Port A Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 2213 Auxiliary Valve #2 Port B Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 2214 Auxiliary Valve #2 Port A Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 2234 Hydraulic Pump Boost Pressure Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 2268 Winch Free Spool Solenoid
FMI 03	Voltage above normal
FMI 05	Current Below Normal
FMI 06	Current above normal
CID 2440 Winch Brake Solenoid
FMI 03	Voltage above normal
FMI 05	Current Below Normal
FMI 06	Current above normal
CID 3441 Auxiliary Valve #2 Diverter Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 3744 Winch Control Handle Brake/Free Spool Sensor
FMI 03	Voltage Above Normal
FMI 04	Voltage Below Normal
FMI 08	Abnormal Frequency, Pulse Width, or Period
CID 3747 Winch Main Pressure Solenoid
FMI 03	Voltage above normal
FMI 05	Current Below Normal
FMI 06	Current above normal
CID 3753 Winch Supply Boost Accumulator Solenoid
FMI 03	Voltage Above Normal
FMI 05	Current Below Normal
FMI 06	Current Above Normal

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Table 3
Diagnostic Codes for the Power Train ECM MID 113
Perform the procedure that corresponds to the CID and the FMI of the diagnostic code during troubleshooting.
CID and FMI	Description of failure
CID 0041 8 V Power Supply
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0070 Parking Brake Switch
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0168 Electrical System Voltage
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0177 Transmission Oil Temperature Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 0247 SAE J1939 Data Link
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0248 Cat Data Link
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0268 Programmed Parameter Fault
FMI 02	Data is erratic, intermittent, or incorrect
CID 0368 Transmission Auto/Manual Switch
FMI 02	Data is erratic, intermittent, or incorrect
CID 0444 Starter Motor Relay
FMI 03	Voltage above normal or shorted high
FMI 05	Current below normal
FMI 06	Current above normal
CID 0468 Service Brake Pedal Position Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
FMI 13	Calibration required
CID 0585 Transmission Output Speed Sensor #1
FMI 02	Data is erratic, intermittent, or incorrect
CID 0590 Engine Control Module
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0596 Implement Control Module
FMI 09	Abnormal update
FMI 14	Parameter failure
CID 0650 Harness Code
FMI 02	Data is erratic, intermittent, or incorrect
CID 0672 Torque Converter Output Speed Sensor
FMI 02	Data is erratic, intermittent, or incorrect
CID 0673 Transmission Output Speed Sensor #2
FMI 02	Data is erratic, intermittent, or incorrect
CID 0681 Parking Brake Solenoid
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 0722 Secondary Brake Solenoid
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 0726 Right Steering Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 0727 Left Steering Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 0826 Torque Converter Oil Temperature Sensor
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 1326 ECM Location Code
FMI 02	Data is erratic, intermittent, or incorrect
CID 1401 Transmission Solenoid 1
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1402 Transmission Solenoid 2
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1403 Transmission Solenoid 3
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1404 Transmission Solenoid 4
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1405 Transmission Solenoid 5
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 1469 Steering Motor Speed Sensor #1
FMI 08	Abnormal frequency, pulse width, or period
CID 1470 Steering Motor Speed Sensor #2
FMI 08	Abnormal frequency, pulse width, or period
CID 1471 Steering Control Position Sensor #1
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
FMI 12	Component failure
FMI 13	Calibration required
CID 1472 Steering Control Position Sensor #2
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
FMI 12	Component failure
FMI 13	Calibration required
CID 1473 Steering Control Position Sensor #3
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
FMI 12	Component failure
FMI 13	Calibration required
CID 1482 10 V Power Supply
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 2113 Operator In Seat Switch
FMI 02	Data is erratic, intermittent, or incorrect
FMI 03	Voltage above normal
FMI 04	Voltage below normal
CID 2500 Powertrain Speed Range Control Position Sensor
FMI 08	Abnormal frequency, pulse width, or period
CID 2596 Brake Pressure Modulation Solenoid
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
FMI 13	Calibration required
CID 2674 Multi-Velocity Program Enable Switch
FMI 02	Data is erratic, intermittent, or incorrect
CID 2993 Direction Selector Position Sensor #1
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
CID 2994 Direction Selector Position Sensor #2
FMI 03	Voltage above normal
FMI 04	Voltage below normal
FMI 08	Current above normal
CID 3467 Main Power Relay
FMI 03	Voltage above normal
FMI 05	Current below normal
FMI 06	Current above normal
CID 3527 Direction Selector
FMI 12	Component failure

Failure Mode Identifier (FMI)

The codes for the Failure Mode Identifier are defined by the SAE standards. The following list contains the Caterpillar version of definitions. The diagram will help you understand the use of FMI with sensors.

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Table 4
Failure Mode Identifier and Message Center Displays
FMI	"Failure Description"
00	Data valid but above normal operating range
01	Data valid but below normal operating range
02	Data is erratic, intermittent, or incorrect
03	Voltage above normal
04	Voltage below normal
05	Current below normal
06	Current above normal
07	Mechanical system not responding properly
08	Abnormal frequency, pulse, or period
09	Abnormal update
10	Abnormal rate of change
11	Failure mode not identifiable
12	Bad device or component
13	Out of calibration
14	Parameter failure
15	Parameter failure
16	Parameter not available
17	Module not responding
18	Sensor supply fault
19	Condition not met
20	Parameter failure

Detailed FMI Explanation

FMI 00 "Data Valid But Above Normal Operating Range" - Every electronic control system sets a high limit for the expected operating range of the signal. The diagnostic code could be a high temperature. A sensor that is still operating but sending a signal above the expected limit will cause an FMI 00 to be stored.

Some of the possible causes of an FMI 00 are listed below.

The signal is above normal.
The signal is shorted to the +battery circuit.
The sensor needs calibration.

This diagnostic code is an example of a sensor that needs calibration. A PWM signal that is at a duty cycle of 80 percent is a valid signal. If a PWM signal has a duty cycle of 81 percent, then the sensor is still working but the signal is above the expected limit.

FMI 01 Data valid but below normal operating range - Every electronic control system sets a low limit for the expected operating range of the signal. The limit includes signals that are under the lower limit. The low signal could be the oil pressure signal. The sensor is still working but sending a signal below the expected limit will cause an FMI 01 to be stored.

Some of the possible causes of an FMI 01 are listed below.

The signal is below the normal range.
The timing is retarded.

This diagnostic code is an example of a PWM sensor. This sensor is not expected to generate a PWM signal below a duty cycle of 5 percent with zero air pressure. A duty cycle of 4 percent with the engine off means that the sensor is working but sending a signal below the expected limit.

FMI 02 Data is erratic, intermittent, or incorrect - The signal from a component is present. The control that reads the diagnostic information cannot read the signal properly. The signal appears to be gone, unstable, or invalid. The data can be correct or incorrect intermittently. Also, this condition relates to communication between controls. When the monitoring system is looking for the engine speed from the engine ECM over the Cat Data Link.

There is a failed connection.
The signal is intermittent or erratic.
The software has been changed.
The signal is noisy.
The signal is out of range.

FMI 03 Voltage above normal or shorted high - The component or system voltage is higher than the limit. FMI 03 most often relates to a signal circuit.

Some of the components that could cause an FMI 03 are listed below.

The sensor or the switch has failed.
The harness is damaged.
The electronic control module has failed.

Some of the possible causes of an FMI 03 are listed below.

A sensor that has failed and the voltage output is high.
Any wiring harness that has a sensor signal wire shorted to a high voltage. A high voltage is any voltage that is greater than the sensor supply voltage.
A wiring harness that has an open circuit in the sensor signal wire will cause the control to pull up. If an open circuit occurs, then the input circuit is pulled up to the supply voltage.
A control that has failed will also cause an FMI 03. An ECM failure is unlikely.

FMI 04 Voltage below normal or shorted low - The component or system voltage is lower than the limit. FMI 04 most often relates to a signal circuit.

Some of the components that could cause an FMI 04 are listed below.

The sensor or the switch has failed.
The harness is damaged.
The electronic control has failed.

Some of the possible causes of an FMI 04 are listed below.

A sensor that has failed and the voltage output is low.
Any wiring harness that has a sensor signal wire shorted to ground.
A failed ECM will also cause an FMI 04. An ECM failure is unlikely.

FMI 05 Current below normal or open circuit - The current through the component or the system is lower than the limit. FMI 05 is most often related to a driver circuit.

Some of the possible causes of an FMI 05 are listed below.

There is an open circuit or a poor harness connection.
There is an open relay.
There is a switch in the open position.

FMI 06 Current above normal or grounded circuit - The current through the component or the system is higher than the limit. FMI 06 is most often related to a driver circuit. This fault is like FMI 04.

Some of the possible causes of an FMI 06 are listed below.

There is a short to ground in the harness connection.
There is a shorted relay.
A failed control will also cause a "FMI 06". An ECM failure is unlikely.

FMI 07 Mechanical system not responding properly - The control detects a signal that is sent to a mechanical system and the response is not correct.

Some of the possible causes of an FMI 07 are listed below.

The component responds improperly.
The component is stuck in a position.
The component has failed.
The engine is shut down.
The machine is being used improperly.

FMI 08 Abnormal frequency, pulse width or period - The control detects the signal is not in the expected range. The FMI 08 can also relate to a faulty sensor.

Some of the possible causes of an FMI 08 are listed below.

The harness connections are intermittent or poor.
The engine misfired.
The signal is noisy due to nearby interference.
There are loose mechanical devices.

FMI 09 Abnormal update - The diagnostic code relates to communications on the data link. FMI 09 occurs when a control is not able to get information from another control.

Some of the possible causes of an FMI 09 are listed below.

The control module is not communicating on the data link correctly.
The rate of data transmission is abnormal.
The data link has failed.
There is a mismatch of software.

FMI 10 Abnormal rate of change - The diagnostic code relates to a signal that changes too fast. The rate of change is outside of the expected limit.

FMI 11 Failure mode not identifiable - The control identifies more than one FMI as being responsible for a single failure.

Some of the possible causes of an FMI 11 are listed below.

There is a mechanical failure.
There is damage to multiple circuits.

FMI 12 Bad device or component - The electronic control sends a signal and the electronic control expects a response. The control receives no response or the response is incorrect.

Some of the possible causes of an FMI 12 are listed below.