Diagnostic Trouble Codes
The following table lists the diagnostic codes for the Machine Control (MID 81). When a diagnostic code becomes active, refer to the Troubleshooting section of this manual for a specific troubleshooting procedure.
Component Identifier (CID) and Failure Mode Identifier Information
Show/hide table
| Diagnostic Trouble Codes For Transmission ECM (MID 81) | ||
|---|---|---|
| DTC | Description | Refer to Test Procedure |
| 41-3 | 8 VDC Supply : Voltage Above Normal | Sensor Supply - Test |
| 41-4 | 8 VDC Supply : Voltage Below Normal | Sensor Supply - Test |
| 168-0 | Battery Voltage: Data valid but above normal operational range | Electrical Power Supply - Test |
| 168-1 | Battery Voltage: Data valid but below normal operational range | Electrical Power Supply - Test |
| 177-3 | Transmission Oil Temperature Sensor: Voltage above normal or shorted high | Sensor Signal (Analog, Passive) - Test |
| 177-4 | Transmission Oil Temperature Sensor: Voltage below normal or shorted low | Sensor Signal (Analog, Passive) - Test |
| 190-2 | Engine Speed Sensor : Erratic, Intermittent, or Incorrect | Cat Data Link - Test |
| 268-2 | Programmed Parameter Fault: Erratic, Intermittent, or Incorrect | |
| 367-3 | Ride Control Switch: Voltage above normal or shorted high | Operator Control Switch (Switch to Ground) - Test |
| 368-3 | Transmission Auto/Manual Switch: Voltage above normal or shorted high | Operator Control Switch (Switch to Ground) - Test |
| 368-4 | Transmission Auto/Manual Switch: Voltage below normal or shorted low | Operator Control Switch (Switch to Ground) - Test |
| 444-3 | Starter Motor Relay : Voltage Above Normal | Relay - Test |
| 444-5 | Starter Motor Relay : Current Below Normal | Relay - Test |
| 444-6 | Starter Motor Relay : Current Above Normal | Relay - Test |
| 562-2 | Caterpillar Monitoring System: Data erratic, intermittent, or incorrect. | Cat Data Link - Test |
| 562-9 | Caterpillar Monitoring System: Abnormal update. | Cat Data Link - Test |
| 562-14 | Caterpillar Monitoring System: Special Instruction. | Cat Data Link - Test |
| 585-8 | Transmission Output Speed Sensor 1: Abnormal Frequency, Pulse Width, or Period | Speed Sensor - Test |
| 590-2 | Engine Control Module: Data erratic, intermittent, or incorrect. | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 590-9 | Engine Control Module: Abnormal Update | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 590-14 | Engine Control Module: Engine Control Module : Abnormal Update Rate | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 596-2 | Implement Control Module: Data erratic, intermittent, or incorrect. | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 596-9 | Implement Control Module: Abnormal Update | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 596-14 | Implement Control Module: Special Instruction. | CAN Data Link - Test or Cat Data Link - Test Refer to the CID 247 or 248 for the correct procedure. |
| 621-3 | Downshift Switch: Voltage Above Normal | Operator Control Switch (Switch to Ground) - Test |
| 621-4 | Downshift Switch: Voltage Below Normal | Operator Control Switch (Switch to Ground) - Test |
| 622-3 | Upshift Switch: Voltage Above Normal | Operator Control Switch (Switch to Ground) - Test |
| 622-4 | Upshift Switch: Voltage Below Normal | Operator Control Switch (Switch to Ground) - Test |
| 623-3 | Directional Switch: Voltage Above Normal | Operator Control Switch (Switch to Ground) - Test |
| 623-4 | Directional Switch: Voltage Below Normal | Operator Control Switch (Switch to Ground) - Test |
| 627-3 | Parking Brake Pressure Switch | Operator Control Switch (Switch to Ground) - Test |
| 627-4 | Parking Brake Pressure Switch | Operator Control Switch (Switch to Ground) - Test |
| 637-3 | Backup Alarm: Voltage Above Normal | Alarm - Test |
| 637-5 | Backup Alarm: Current Below Normal | Alarm - Test |
| 637-6 | Backup Alarm: Voltage Above Normal | Alarm - Test |
| 668-3 | Transmission Shift Lever Switch: Voltage Above Normal | Operator Control Switch (Switch to Ground) - Test |
| 668-4 | Transmission Shift Lever Switch: Voltage Below Normal | Operator Control Switch (Switch to Ground) - Test |
| 672-8 | Torque Converter Output Speed Sensor: Abnormal Frequency, Pulse Width, or Period | Speed Sensor - Test |
| 673-8 | Transmission Output Speed Sensor: Abnormal Frequency, Pulse Width, or Period | Speed Sensor - Test |
| 702-3 | Gear Lever Select Switch Sensor: Voltage Above Normal | Operator Control Switch (Switch to Ground) - Test |
| 702-4 | Gear Lever Select Switch Sensor: Voltage Below Normal | Operator Control Switch (Switch to Ground) - Test |
| 737-3 | Left Brake Pedal Position Sensor: Voltage Above Normal | Sensor Signal (PWM) - Test |
| 737-4 | Left Brake Pedal Position Sensor: Voltage Below Normal | Sensor Signal (PWM) - Test |
| 737-8 | Left Brake Pedal Position Sensor: Abnormal Frequency, Pulse Width, or Period | Sensor Signal (PWM) - Test |
| 737-13 | Left Brake Pedal Position Sensor: Out of Calibration | Sensor Signal (PWM) - Test |
| 793-3 | Pressure Switch (Primary Steering): Voltage Above Normal | Condition Switch (Two Wire) -Test |
| 793-4 | Pressure Switch (Primary Steering): Voltage Below Normal | Condition Switch (Two Wire) -Test |
| 794-3 | Pressure Switch (Secondary Steering): Voltage Above Normal | Condition Switch (Two Wire) -Test |
| 794-4 | Pressure Switch (Secondary Steering): Voltage Below Normal | Condition Switch (Two Wire) -Test |
| 794-7 | Pressure Switch (Secondary Steering): Not Responding | Condition Switch (Two Wire) -Test |
| 795-7 | Secondary Steering Intermediate Relay: Not Responding | Relay - Test |
| 967-2 | Machine Application: Data erratic, intermittent, or incorrect | Cat Data Link - Test |
| 967-9 | Machine Application: Abnormal Update | Cat Data Link - Test |
| 967-12 | Machine Application: Bad Component | Cat Data Link - Test |
| 1326-2 | ECM Location Code: Data erratic, intermittent, or incorrect | ECM Location Code - Test |
| 1401-3 | Transmission Solenoid 1 : Voltage Above Normal | Solenoid Valve - Test |
| 1401-5 | Transmission Solenoid 1 : Current Below Normal | Solenoid Valve - Test |
| 1401-6 | Transmission Solenoid 1 : Current Above Normal | Solenoid Valve - Test |
| 1401-13 | Transmission Solenoid 1: Calibration Required | Solenoid Valve - Test |
| 1402-3 | Transmission Solenoid 2: Voltage Above Normal | Solenoid Valve - Test |
| 1402-5 | Transmission Solenoid 2: Current Below Normal | Solenoid Valve - Test |
| 1402-6 | Transmission Solenoid 2: Current Above Normal | Solenoid Valve - Test |
| 1402-13 | Transmission Solenoid 2: Calibration Required | Solenoid Valve - Test |
| 1403-3 | Transmission Solenoid 3: Voltage Above Normal | Solenoid Valve - Test |
| 1403-5 | Transmission Solenoid 3: Current Below Normal | Solenoid Valve - Test |
| 1403-6 | Transmission Solenoid 3: Current Above Normal | Solenoid Valve - Test |
| 1403-13 | Transmission Solenoid 3: Calibration Required | Solenoid Valve - Test |
| 1404-3 | Transmission Solenoid 4: Voltage Above Normal | Solenoid Valve - Test |
| 1404-5 | Transmission Solenoid 4: Current Below Normal | Solenoid Valve - Test |
| 1404-6 | Transmission Solenoid 4: Current Above Normal | Solenoid Valve - Test |
| 1404-13 | Transmission Solenoid 4: Calibration Required | Solenoid Valve - Test |
| 1405-3 | Transmission Solenoid 5: Voltage Above Normal | Solenoid Valve - Test |
| 1405-5 | Transmission Solenoid 5: Current Below Normal | Solenoid Valve - Test |
| 1405-6 | Transmission Solenoid 5: Current Above Normal | Solenoid Valve - Test |
| 1405-13 | Transmission Solenoid 5: Calibration Required | Solenoid Valve - Test |
| 1406-3 | Transmission Solenoid 6: Voltage Above Normal | Solenoid Valve - Test |
| 1406-5 | Transmission Solenoid 6: Current Below Normal | Solenoid Valve - Test |
| 1406-6 | Transmission Solenoid 6: Current Above Normal | Solenoid Valve - Test |
| 1406-13 | Transmission Solenoid 6: Calibration Required | Solenoid Valve - Test |
| 1960-9 | Ignition Key Reader : Abnormal Update Rate | CAN Data Link - Test |
| 2129-3 | Ride Control Solenoid 1: Voltage Above Normal | Solenoid Valve - Test |
| 2129-5 | Ride Control Solenoid 1: Current Below Normal | Solenoid Valve - Test |
| 2129-6 | Ride Control Solenoid 1: Current Above Normal | Solenoid Valve - Test |
| 2274-3 | Transmission Direction Switch 2: Voltage Above Normal | Condition Switch (Two Wire) -Test |
| 2274-4 | Transmission Direction Switch 2: Voltage Below Normal | Condition Switch (Two Wire) -Test |
| 2347-3 | Ride Control Solenoid 2: Voltage Above Normal | Solenoid Valve - Test |
| 2347-5 | Ride Control Solenoid 2: Current Below Normal | Solenoid Valve - Test |
| 2347-6 | Ride Control Solenoid 2: Current Above Normal | Solenoid Valve - Test |
| 2825-3 | Axle Oil Cooler Solenoid: Voltage Above Normal | Relay - Test |
| 2825-5 | Axle Oil Cooler Solenoid: Current Below Normal | Relay - Test |
| 2825-6 | Axle Oil Cooler Solenoid: Current Above Normal | Relay - Test |
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