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CAT Fault Codes List: 807 to 894

Page 38 of 83 of the full CAT fault code list (8,286 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

CAT codes 807 to 894

  • 807Fault in Dif 2 – ASR Valve
  • 808Fault in Pneumatic Engine Control
  • 809Fault in Electronic Engine Control
  • 81Particulate Trap Inlet Pressure Sensor
  • 810Fault in Speed Signal Input
  • 811Warning Light Bulb fault
  • 812ASR Light Bulb fault
  • 813Fault in Wheel Sensor ABS Axle 1 Average
  • 814Fault in Wheel Sensor ABS Axle 2 Average
  • 815Fault in Wheel Sensor ABS Axle 3 Average
  • 816Fault in Pressure Modulator, Drive Axle Relay Valve
  • 817Fault in Pressure Transducer, Drive Axle Relay Valve
  • 818Fault in Master Control Relay
  • 819Trailer Brake Slack Out Of Adjustment Forward Axle Left
  • 820Trailer Brake Slack Out Of Adjustment Forward Axle Left
  • 821Trailer Brake Slack Out Of Adjustment Rear Axle Left
  • 822Trailer Brake Slack Out Of Adjustment Rear Axle Right
  • 823Tractor Brake Slack Out Of Adjustment Axle 1 Left
  • 824Tractor Brake Slack Out Of Adjustment Axle 1 Right
  • 825Tractor Brake Slack Out Of Adjustment Axle 2 Left
  • 826Tractor Brake Slack Out Of Adjustment Axle 2 Right
  • 827Tractor Brake Slack Out Of Adjustment Axle 3 Left
  • 828Tractor Brake Slack Out Of Adjustment Axle 3 Right
  • 829Fault in Left Fuel Level Sensor
  • 83Automatic Retarder Control
  • 830Fault in Right Fuel Level Sensor
  • 831Fault in Engine Fuel Feed Rate Sensor
  • 832Cylinder #12 Exhaust Port Temperature Deviating High
  • 833Cylinder #13 Exhaust Port Temperature Deviating High
  • 834Cylinder #14 Exhaust Port Temperature Deviating High
  • 835Cylinder #15 Exhaust Port Temperature Deviating High
  • 836Cylinder #16 Exhaust Port Temperature Deviating High
  • 837Speedometer Drive Output Error
  • 838Cylinder #18 Exhaust Port Temperature Deviating High
  • 839Cylinder #19 Exhaust Port Temperature Deviating High
  • 84Vehicle speed anti-tampering fault
  • 84-0Wheel-Based Vehicle Speed : High - Most Severe (3)
  • 84-00Vehicle Overspeed Warning
  • 84-01Loss of Vehicle Speed Signal
  • 84-02Invalid Vehicle Speed Signal
  • 84-08Vehicle Speed Out of Range
  • 84-1Wheel-Based Vehicle Speed : Low - Most Severe (3)
  • 84-10Wheel-Based Vehicle Speed : Abnormal Rate of Change
  • 84-14Wheel-Based Vehicle Speed : Special Instruction
  • 84-2Wheel-Based Vehicle Speed : Erratic, Intermittent, or Incorrect
  • 843Cylinder #3 Exhaust Port Temperature Deviating Low
  • 844Cylinder #4 Exhaust Port Temperature Deviating Low
  • 845Cylinder #5 Exhaust Port Temperature Deviating Low
  • 846Cylinder #6 Exhaust Port Temperature Deviating Low
  • 847Cylinder #7 Exhaust Port Temperature Deviating Low
  • 84-8Wheel-Based Vehicle Speed : Abnormal Frequency, Pulse Width, or Period
  • 849Cylinder #9 Exhaust Port Temperature Deviating Low
  • 850Cylinder #10 Exhaust Port Temperature Deviating Low
  • 851Cylinder #11 Exhaust Port Temperature Deviating Low
  • 852Cylinder #12 Exhaust Port Temperature Deviating Low
  • 853Cylinder #13 Exhaust Port Temperature Deviating Low
  • 854Cylinder #14 Exhaust Port Temperature Deviating Low
  • 855Cylinder #15 Exhaust Port Temperature Deviating Low
  • 856Cylinder #16 Exhaust Port Temperature Deviating Low
  • 857Cylinder #17 Exhaust Port Temperature Deviating Low
  • 858Cylinder #18 Exhaust Port Temperature Deviating Low
  • 859Cylinder #19 Exhaust Port Temperature Deviating Low
  • 860Cylinder #20 Exhaust Port Temperature Deviating Low
  • 861Clock Manual Alignment Required
  • 862Attachment Hydraulic Oil Filter Plugged
  • 863Abnormal Machine Auto Lube System Operation
  • 864Variable Implement Pump Oil Pressure Sensor
  • 865High Gas Fuel Differential Pressure
  • 866Load Proportional Output
  • 867Hydraulic Engine Retarder Valve Solenoid
  • 868Gas Flow Control Valve Malfunction
  • 869Right Lift Cylinder Position Sensor
  • 8696PPKM (14000 PPM)
  • 870High Turbo Turbine Inlet Air Temperature
  • 871Geographical Exclusive Zone #1 Boundary Violation
  • 872Geographical Exclusive Zone #2 Boundary Violation
  • 873Geographical Exclusive Zone #3 Boundary Violation
  • 874Geographical Exclusive Zone #4 Boundary Violation
  • 875Manual Select Switch
  • 876Pitch Forward Trigger Switch
  • 877Evaporator thermostat circuit fault detected.
  • 878Side marker lamp circuit fault detected.
  • 879Left turn lamp circuit fault detected.
  • 88High Left Rear Brake Oil Temperature
  • 880Stop lamp circuit fault detected.
  • 881Right turn lamp circuit fault detected.
  • 882Tail lamp/license plate lamp circuit fault detected.
  • 883Auxiliary lamp circuit fault detected.
  • 884Tractor mounted rear axle slider control unit fault.
  • 885Trailer mounted rear axle slider control unit fault.
  • 886Headway controller forward antenna fault detected.
  • 887Headway controller brake input monitor fault.
  • 888Headway controller speaker monitor fault.
  • 889Headway controller steering sensor monitor fault.
  • 89High Right Rear Brake Oil Temperature
  • 890Headway controller speedometer monitor fault.
  • 891Headway controller right turn signal monitor fault.
  • 892Headway controller left turn signal monitor fault.
  • 893Headway controller control display unit fault.
  • 894Headway controller right side sensor fault.
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