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I have checked codes and tried to find online what they are…

Customer Question

I have checked codes and...

I have checked codes and tried to find online what they are but no luck. Do you have access to Cat codes that may tell me what these are. List
0590 09
1257 08
1823 04
0750 02
0271 04
0811 09
0668 02
0668 09
Several, not sure if any deal with trans issues. Thks

Submitted: 14 days ago.Category: Construction and Road Equipment

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12/1/2019

Mechanic: catmastertech, Technician replied 14 days ago

catmastertech, Technician

Category: Construction and Road Equipment

Satisfied Customers: 2,941

Experience: Field service technician for CAT 19 years.

Verified

Hey, sorry to hear you are having these problems. I know that can be frustrating. Hopefully, we can get you back to work quickly. The site has been having some trouble this mourning and is causing delays in responses. I see no one could help you earlier, and I hope this is not too late to be helpful. Please note that I am not set up for phone calls, you can ignore the site pop-ups. We can post to this chat as much as you like to work through this issue. All experts are not employees, and we work from home in our spare time to answer questions.

These codes normally have a MID (Module ID #) preceding the CID (Component ID #) and the FMI (Failure Mode ID #) you posted. This three-digit code tells me which ECM reported the fault code. This is very helpful to isolate any problems.

Some MID's are 030 for monitors, 036 or 039 for engines, 069 or 081 for implements, and 082 or 113 for transmissions.

It is also helpful to have the complete machine serial number so I can reference it for more details on how the code can be related to your problem over any generic code information.

The list is often in the order of the most recent failure first, if this is how they were presented during scrolling it should mean the 590-09 code is the most recent which tells me an ECM is not reporting.

Depending on the display, it will add an identifier for ACTIVE codes or show the words SERV CODE. This indicates the code is currently active and not just an older logged code. This info is great to know as well so we can ignore older logged codes unless they relate to this problem.

If you have this information available, please post it here and we can work through this list. You can also post pictures of the display and serial number and I can see the codes and warning lights you are seeing.

Mechanic: catmastertech, Technician replied 14 days ago

This is all I have found so far.

1257 08 WINCH FILTER or TRANS GEAR RATION 2

1823 04 REAR AXLE BUMPER RANGE or INCORRECT COMPRESSOR BREAKER or SHIFT RIAL 1 SENSOR

0750 02 REAR STEER MANUAL SWITCH

0271 04 ACTION ALARM

0811 09 GAUGE CLUSTER

0668 02 VARIABLE HP SOLENOID

0668 09

This is for the last two digits of each code.

FMI "Failure Description"

0 "High"

1 "Low"

2 "Erratic, Intermittent, or Incorrect"

3 "Voltage Above Normal"

4 "Voltage Below Normal"

5 "Current Below Normal"

6 "Current Above Normal"

7 "Not Responding Properly"

8 "Abnormal Frequency, Pulse Width, or Period"

9 "Abnormal Update Rate"

10 "Abnormal Rate of Change"

11 "Other Failure Mode"

12 "Failure"

13 "Out of Calibration"

14 "Special Instruction"

19 "Data Error"

20 "Data Drifted High"

21 "Data Drifted Low"

Customer reply replied 14 days ago

Ok.
7(###) ###-####09(###) ###-####02(###) ###-####09(###) ###-####08(###) ###-####09(###) ###-####04(###) ###-####02
7(###) ###-####04
These are full codes in the order they scrolled. ThksCat TH350B SN SLD1047

Mechanic: catmastertech, Technician replied 14 days ago

Did you notice the left side while recording the codes?

What exactly is wrong with this machine or are you only asking for the code information?

Sorry, Your post came in while I was answering the first post.

Customer reply replied 14 days ago

The machine doesnt go into gear sometimes, after a bit of taking shift in and out of gears it will catch and work then just kick out into neutral. Sometimes this is a short period and then it may take 5 minutes or more for it to go into gear.

Mechanic: catmastertech, Technician replied 14 days ago

I don't find info for a 029 MID but 039 is common for these machines.

Based on your problem, I suspect the shift handle is at fault. It is a data link connection to the ECM and has communication problems.

Here are the details of the codes for your list.

(###) ###-####09
This diagnostic code is recorded when the machine ECM does not receive expected information from the Engine ECM for a period of more than five seconds.
System Response:
This failure results in events that are logged against an ECM that can not be explained directly. The machine ECM cannot communicate with this ECM or the ECM appears to communicate intermittently.(###) ###-####02
This failure results in events that are logged against an ECM that can not be explained. The Machine ECM cannot communicate with the control for the shift lever. The input for the shift lever is invalid. The ECM appears to work intermittently.(###) ###-####09
This diagnostic code is recorded when the machine ECM does not receive expected information from the shift lever for more than 5 seconds.

Possible causes of the 668-9 diagnostic code are listed below:

An open, short, or a poor connection in the Cat data link circuit
Excessive noise on the data link circuit
The shifter controller has failed
The machine ECM has failed. This condition is unlikely.
System Response:

This failure results in events that are logged against an ECM that cannot be explained directly. The machine ECM cannot communicate with this ECM or the ECM appears to communicate intermittently.

(###) ###-####08
This diagnostic code is associated with the R-terminal connector of the alternator. The FMI 08 means that the ECM has determined that the signal from the terminal is abnormal.

The possible causes of this diagnostic code are listed below:

The alternator has failed.
Intermittent connections or poor connections
Mechanical devices are loose.
The ECM has failed. This is unlikely.

(###) ###-####09
This diagnostic code is recorded when the machine ECM does not receive expected information from the Dash Panel Cluster for a period of more than five seconds.(###) ###-####04
This diagnostic code is associated with the action alarm. The FMI 04 means that the ECM has determined that the current of the alarm circuit is above normal.

The possible causes of this diagnostic code are listed:

The energize circuit of the alarm is shorted to ground.
The alarm has failed.
The ECM has failed. This is unlikely.

(###) ###-####02
The shuttle handle inputs are monitored in order to ensure that a matched pair of switch to ground and switch to battery signals for either forward or reverse is read. The exception would be when NO desired input is received from the shuttle control. When no input is received, then the control is set a neutral state.

System Response:

When this failure occurs, the following responses occur.

The transmission will neutralize.
The action alarm will sound.

(###) ###-####04
This diagnostic code is associated with the position sensor (transmission shift rail) (No. 1). The FMI 04 means that the ECM has determined that the voltage of the circuit for the position sensor is below normal.

The position sensor is a PWM sensor that operates at a frequency of approximately 250 hertz. The sensor has an operating duty cycle of 10% to 90%. 10% represents the shaft position at 0 mm (0.0 inch). 90% represents the shaft position at 24 mm (0.95 inch).

The possible causes of this diagnostic code are listed below:

The signal circuit for the sensor is shorted to ground.
The sensor has failed.
The ECM has failed. This is unlikely.

OOPS, the(###) ###-####02 code is wrong, that is for a(###) ###-####02 code for the shift handle.

The 0750 is for the steering manual mode selector switch.

This diagnostic code is associated with the Switch (Steering Mode). The FMI 02 means that the ECM determined that the signal is intermittent, erratic, or incorrect. The ECM could be receiving invalid combinations from the circuit.

System Response:

An event category 1 is logged. The system will default to a two-wheel system.

Testing the shuttle shift handle normally requires CAT ET program. I have this basic testing you could do to verify the handle and not the harness is the issue.

Test Step 3. INSPECT THE HARNESS CONNECTIONS.

Turn the disconnect switch to the OFF position.

Inspect all harness connections. Make sure that the connectors are clean and tight.

Check the connectors for proper mating. Ensure that all the seals are present and in place.

Check the harness for signs of damage or abrasion.

Check the wires at the connector. Ensure that the wires are secured tightly into the connector. Take care not to pull the wire out of the connector.

Check the exposed wires at the connectors for nicks or signs of abrasion.

Check for moisture inside the connector.

Check the connectors for dirty contacts or corroded contacts.

Check each pin and each socket of the machine harness connectors. Ensure that the contacts are properly installed. The contacts should mate correctly when the two pieces of the connector are placed together.

Expected Result:

The machine harness connectors are tight and free of corrosion.

Results:

OK - The machine harness connectors are tight and free of corrosion. Proceed to Test Step 4.
NOT OK - The machine harness connectors are in need of repair.
Repair: Repair the machine harness or replace the machine harness.
Stop.

Test Step 4. CHECK FOR SHORTS TO GROUND

Table 2

Circuit Contact

Forward Input +
H731-GY J1-25

Forward Input -
G750-BU J2-59

Reverse Input +
H730-BR J1-24

Reverse Input -
G755-GY J2-60

The disconnect switch remains in the OFF position.

Disconnect the machine harness connectors from the shuttle lever and the machine ECM.

At the machine harness for the ECM, measure the resistance from the contacts that are provided in the table to all possible sources of ground.

Expected Result:

The resistance is greater than 5000 ohms.

Results:

OK - The resistance is greater than 5000 ohms. The harness circuit resistance is correct. Proceed to Test Step 5.
NOT OK - The resistance is less than 5000 ohms in one or more of the measurements. The machine harness has failed.
Repair: There is a short in the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.
Stop.

Test Step 5. CHECK FOR SHORT TO THE +BATTERY CIRCUIT

Table 3

Circuit Contact

Forward Input +
H731-GY J1-25

Forward Input -
G750-BU J2-59

Reverse Input +
H730-BR J1-24

Reverse Input -
G755-GY J2-60

The disconnect switch remains in the OFF position.

All related machine harness connectors remain disconnected.

At the machine harness for the ECM, measure the resistance from the contacts that are provided in the table to all possible sources of +battery.

Expected Result:

The resistance is greater than 5000 ohms.

Results:

OK - The harness circuit resistance is correct. Proceed to Test Step 6.
NOT OK - The resistance is less than 5000 ohms. The machine harness has failed.
Repair: There is a short between the +battery circuit and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.
Stop.

Test Step 6. CHECK IF THE DIAGNOSTIC CODE REMAINS.

Inspect the contacts and clean the contacts of the harness.

Reconnect all harness connectors.

Turn the disconnect switch and the key start switch to the ON position.

Operate the machine.

Stop the machine and engage the parking brake.

Observe the status of the diagnostic code.

Expected Result:

The diagnostic code is no longer active. The diagnostic code is no longer present.

Results:

OK - The diagnostic code is no longer present. The diagnostic code does not exist at this time. The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation. Stop.
NOT OK - The diagnostic code has not been corrected. The ECM may have failed.
Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this diagnostic code again. If the cause of the diagnostic code is not found, replace the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace".
Stop.

I have replaced several handles in the past and they are not cheap. However, the harness is a more common issue. I would inspect the harness where it rubs at the front just below the ECM mount and where it passes under the machine frame as these are common damage points. Exposed wires will cause interference in the data link to the shift handle and create the -688 codes.

Thank you for using JustAnswer, if you do need further help please let me know.

If you are satisfied with my service, please take a moment to provide a rating.

Thanks again, Don

CATMASTERTECH

Customer reply replied 14 days ago

Thks i will get my mechanic to check these.

Mechanic: catmastertech, Technician replied 14 days ago

Glad I could help.

Thanks again, Don

CATMASTERTECH

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