Diagnostic Code List
Use the Caterpillar Electronic Technician (Cat ET) or the display of the Cat Object Detection System (Cat Detect) in order to determine the diagnostic codes for the Cat Detect System. After determining the diagnostic codes, refer to the corresponding test procedure for more information. Perform the procedure that corresponds to the diagnostic code (CID and FMI).
The following table is a list of possible diagnostic codes for the Cat Detect.
Show/hide table
| List of Diagnostic Codes (MID 134) | |
|---|---|
| CID 0168 - Battery Supply | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 0247 - SAE J1939 Data Link | |
| FMI 09 | Abnormal update |
| CID 0248 - CAT Data Link | |
| FMI 09 | Abnormal update |
| CID 2348 - SAE J1939 Data Link | |
| FMI 09 | Abnormal update |
| CID 3317 - Medium Object Detection Sensor #1 (Left Front) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3318 - Medium Object Detection Sensor #2 (Right Front) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3319 - Medium Object Detection Sensor #3 (Left Side) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3320 - Medium Object Detection Sensor #4 (Left Rear Upper) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3321 - Medium Object Detection Sensor #5 ( Left Rear Lower) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3322 - Medium Object Detection Sensor #6 (Right Rear Lower) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3323 - Medium Object Detection Sensor #7 (Right Side) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3324 - Medium Object Detection Sensor #8 (Right Rear Upper) | |
| FMI 09 | Abnormal update |
| FMI 11 | Incorrect internal CAN resistance |
| FMI 12 | Bad device or component |
| CID 3329 - Medium Range Object Detection Sensor #1 Power Supply (Left Front) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3330 - Medium Range Object Detection Sensor #2 Power Supply (Right Front) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3331 - Medium Range Object Detection Sensor #3 Power Supply (Left Side) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3332 - Medium Range Object Detection Sensor #4 Power Supply (Left Rear Upper) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3333 - Medium Range Object Detection Sensor #5 Power Supply ( Left Rear Lower) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3334 - Medium Range Object Detection Sensor #6 Power Supply (Right Rear Lower) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3335 - Medium Range Object Detection Sensor #7 Power Supply (Right Side) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
| CID 3336 - Medium Range Object Detection Sensor #8 Power Supply (Right Rear Upper) | |
| FMI 03 | Voltage above normal |
| FMI 04 | Voltage below normal |
Note: Table 1 shows the diagnostic codes for the Cat Object Detection System only. The module identifier (MID) indicates to the service personnel that the ECM is sending the diagnostic code. The MID for the display of the Cat Object Detection System is MID 134. The Electrical System Schematic shows the module identifier (MID) codes of any other electronic controls on a machine. Information for electronic troubleshooting of the diagnostic codes other than MID 134 can be found in the service manual for that system.
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