5230B Excavator Electronic Systems Guide Diagnostic Code List Caterpillar


Diagnostic Code List
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1.1. Module Identifier (MID)
2.2. Component Identification (CID)
3.1. Failure Mode Identifier
4.2. Detailed FMI Explanation

Use the VIMS or the Electronic Technician in order to determine the diagnostic codes for the ECM's. After the diagnostic codes are determined, refer to the corresponding test procedure for more information. Perform the procedure that corresponds to the diagnostic code (CID and FMI). The following tables are a list of possible diagnostic codes for the ECM.

Module Identifier (MID)

Diagnostics from other electronic control modules are shown on the monitoring system. Other electronic control modules transfer this diagnostic information on the AVS data link to the monitoring system.

The module identifier (MID) identifies the electronic control module that detected the failure. 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 electronic control module. The chart for the Module Identifier (MID) is located on the Electrical System Schematic for your machine. See the chart if the MID is not shown on the display of your machine. After the operator determines the electronic control module that has detected the failure, see the service manual module for that particular ECM for more troubleshooting information. The service manual for each ECM is part of the machine's Service Manual.

Table 1
Module Identifiers (MID)    
MID     Description     Manual    
036     Engine ECM     RENR1305    
039     Machine ECM     RENR3375    
049     VIMS Monitoring System     RENR3376    
057     VIMS Interface Module     RENR3376    

Component Identification (CID)

A CID is a code that is used to identify a particular component. The CID is a four digit code that is shown on the ECM display when the ECM is in normal mode. The following is a list of CID's for the 5230B Excavator:

Table 2
Diagnostic Codes For Engine Control (MID No. 036) (1)
   
CID     Description    
0001     Cylinder 1 Injector Solenoid    
0002     Cylinder 2 Injector Solenoid    
0003     Cylinder 3 Injector Solenoid    
0004     Cylinder 4 Injector Solenoid    
0005     Cylinder 5 Injector Solenoid    
0006     Cylinder 6 Injector Solenoid    
0007     Cylinder 7 Injector Solenoid    
0008     Cylinder 8 Injector Solenoid    
0009     Cylinder 9 Injector Solenoid    
0010     Cylinder 10 Injector Solenoid    
0011     Cylinder 11 Injector Solenoid    
0012     Cylinder 12 Injector Solenoid    
0013     Cylinder 13 Injector Solenoid    
0014     Cylinder 14 Injector Solenoid    
0015     Cylinder 15 Injector Solenoid    
0016     Cylinder 16 Injector Solenoid    
0091     Throttle Sensor Output    
0100     Engine Oil Pressure    
0101     Crankcase Pressure Signal    
0110     Coolant Temperature    
0168     Battery Voltage    
0190     Engine RPM Signal    
0248     AVS Data Link    
0253     Personality Module    
0254     ECM    
0261     Timing Calibration    
0262     Analog Sensor Supply    
0263     Digital Sensor Supply    
0267     Shutdown Inputs    
0268     Programmable Parameters    
0273     Turbocharger Outlet Pressure    
0274     Atmospheric Pressure    
0275     Right Turbocharger Inlet Pressure    
0276     Left Turbocharger Inlet Pressure    
0277     Timing Calibration    
0279     Aftercooler Temperature    
0290     Engine Fan Pump Pressure    
0291     Engine Cooling Fan Solenoid    
0295     Communicate w/Machine Control    
0542     Unfiltered Oil Pressure Signal    
0543     Filter Oil Pressure    
0545     Start Aid Relay    
0546     Start Aid Hold Relay    
0547     Ether Injection Lamp    
0548     Throttle Lock Lamp    
0569     Oil Renewal Solenoid    
0580     Power Shift Pressure    
0581     Power Shift Solenoid    
0799     Service Tool    
0800     VIMS Main Module    
0827     Left Exhaust Temp Signal    
0828     Right Exhaust Temp Signal    
( 1 ) This table pertains only to faults with a MID of 036.

Table 3
Diagnostic Codes For Machine Control (MID No. 039) (1)    
CID     Description    
0248     AVS Data Link    
0292     Hydraulic Demand Fan Solenoid    
0295     Machine ECM    
0371     Horn Solenoid    
0372     Bucket Open Solenoid    
0373     Bucket Close Solenoid    
0374     Brake Swing Solenoid    
0376     Travel Alarm    
0377     Travel Brake Solenoid    
0379     Automatic Lubrication Sensor    
0463     Dual Pressure Relief Solenoid    
0558     Automatic Lubrication Relay    
0559     Boom Float Relay    
0600     Hydraulic Oil Temperature Sensor    
0650     Harness Code    
0733     Hydraulic Cooler Blocker Solenoid    
0736     AESC Control Line    
0790     Swing Pressure Switch    
0864     Implement Pressure Switch    
1080     Swing Pressure Solenoid    
1173     Swing Brake Pilot Pressure Sensor    
1174     Swing Motor Speed Sensor    
( 1 ) This table pertains only to faults with a MID of 039.

Table 4
Diagnostic Codes For VIMS Main Module (MID No. 049) (1)    
CID     Description    
0041     Sensor Power Supply    
0096     Level Sensor (Fuel)    
0145     Sensor Power Supply    
0171     Ambient Air Temperature    
0248     AVS Data Link    
0262     Sensor Power Supply    
0271     Alarm (Action)    
0295     Machine Control    
0324     Lamp (Action)    
0438     Control Valve 1    
0439     Control Valve 2    
0590     Engine Control    
0801     VIMS Interface Module 1    
0811     Gauge Cluster 1    
0815     Message Center Module 1    
0817     Date/Data Loss    
0819     Display Data Link    
0820     Keypad Data Link    
0822     Display Backlighting Voltage    
0823     VIMS Service Lamp    
0824     Green Payload Lamp    
0825     Red Payload Lamp    
0890     Broad Cast Port    
( 1 ) This table pertains only to faults with a MID of 049.

Table 5
Diagnostic Codes For VIMS Interface Module (MID No. 057) (1)    
CID     Description    
0041     Sensor Power Supply    
0262     Sensor Power Supply    
0280     Gear Box Temperature    
0341     Control Valve 4    
0440     Control Vale 3    
0650     Harness Code    
0849     System Air Pressure    
0851     Gear Box Pressure    
( 1 ) This table pertains only to faults with a MID of 057.

Failure Mode Identifier

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




Illustration 1g00493694

Table 6
Failure Mode Identifier and Message Center Displays    
FMI     "Failure Description"     Message Center Display    
00     "Data valid but above normal operating range"     N/A    
01     "Data valid but below normal operating range"     N/A    
02     "Data erratic, intermittent or incorrect"     "INTERMITTENT"    
03     "Voltage above normal or shorted high"     "SHORTED HI"    
04     "Voltage below normal or shorted low"     "SHORTED LO"    
05     "Current below normal or open circuit"     "LO AMPS OPEN"    
06     "Current above normal or grounded circuit"     "HI AMPS GROUNDED"    
07     "Mechanical system not responding properly"     N/A    
08     "Abnormal frequency, pulse, or period"     "OUT OF RANGE"    
09     "Abnormal update"     "NO RESPONSE"    
10     "Abnormal rate of change"     N/A    
11     "Failure mode not identifiable"     "UNKNOWN ERROR"    
12     "Bad device or component"     NO RESPONSE    
13     "Out of calibration"     "UNCALIBRATED"    
14     N/A     N/A    
15     N/A     N/A    
16     "Parameter not available"     "NOT AVAILABLE"    
17     "Module not responding"     "NO RESPONSE"    
18     "Sensor supply fault"     "SNSR SUPPLY FAULT"    
19     "Condition not met"     N/A    
20     N/A     N/A    

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 high limit includes over range signals. This could be a high temperature. A sensor that is still operating but sending a signal above the expected limit will cause a FMI 00 to be stored.

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

  • The signal is above normal.

  • The signal is shorted to the +battery circuit.

  • The sensor needs to be calibrated.

This 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 the PWM signal has a duty cycle of 81 percent the sensor is still working, but the sensor signal is above the expected signal limits.

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 a FMI 01 to be stored.

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

  • The signal is below the normal range.

  • The timing is retarded.

This 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. If the sensor generates a signal with a duty cycle of 4 percent when the engine is shutdown. The sensor is still working but sending a signal below the expected limit will cause a FMI 01 to be stored.

FMI 02 "Data Erratic, Intermittent or Incorrect" - The signal from a component is present. The control that reads the diagnostic information can not 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. This is an example of communication between controls. When the monitoring system is looking for the engine speed from the engine ECM over the AVS 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 a 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 a 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. When this occurs the input circuit is pulled up to the supply voltage.

  • A control that has failed will also cause a FMI 03. This is very 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 a 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 a 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 a FMI 04. This is very 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 a 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 failure is very similar to FMI 04.

Some of the possible causes of a 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. This is very 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 a 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" - This occurs when the signal is not in the expected range. FMI 08 can also relate to a sensor that has failed.

Some of the possible causes of a 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" - This 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 a 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" - This 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 a 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 a FMI 12 are listed below.

  • There is a failure of the electronic control.

  • There is a failure on the data link.

  • There are one or more controls with mismatched software.

FMI 13 "Out of Calibration" - The electrical signal is not within limits for a specific mechanical condition.

Some of the possible causes of a FMI 13 are listed below.

  • Calibration is required.

  • The data is out of range.

FMI 14, 15, and 20 - These codes are not active.

FMI 16 "Parameter Not Available" - The control does not support the requested parameter.

FMI 17 "Module Not Responding" - The control does not respond to the request for data.

FMI 18 "Sensor Supply Failure" - The sensor power supply in the control has failed.

FMI 19 "Condition Not Met" - The conditions that are defined by the software were not met.