CAT Fault Codes List: 2801 to 2902
Page 21 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 2801 to 2902
- 2801Power Inverter #2 ECM Power Supply Output #1
- 2802Power Inverter #2 ECM Power Supply Output #2
- 2803Power Inverter #2 ECM Power Supply Output #3
- 2804Left Rear Turn Signal Light
- 2805Right Rear Turn Signal Light
- 2806Left Front Turn Signal Light
- 2807Engine fuel shutoff valve #2 issue.
- 2808Bucket Left Turn Signal Light
- 2809Engine air filter 2 differential pressure issue.
- 281Steering Hydraulic Oil Filter Restricted
- 2810Engine air filter 3 differential pressure issue.
- 2811Engine air filter 4 differential pressure issue.
- 2812Engine overspeed test failure.
- 2813Secondary Brake Accumulator Pressure Sensor
- 2814Quick Coupler Engage Solenoid
- 2817Clutch pedal used during non-recoverable fault.
- 2818PTO switch on with no operator present.
- 2819Park interlock error detected.
- 282Implement Hydraulic Oil Filter Restricted
- 2820Operator not present during reverser command.
- 2821Reverser lever neutral and power signals conflict.
- 2822Reverser lever neither forward nor reverse.
- 2823Reverser lever simultaneous forward and reverse.
- 2824Reverser lever motion interlock conflict.
- 2827Power up without neutral detected.
- 2828Reverser lever transition too long.
- 2829Neutral/park transition too long.
- 283Low Hydraulic Charge Pressure
- 2830Reversing ratio rationality fault.
- 2831No carrier speed at start-up.
- 2832Operator not in operating station.
- 2833Motion with park brake engaged.
- 2834No hydrostatic unit speed at start-up.
- 283-5Engine Intake Valve Actuation System Oil Pressure Control Valve : Current Below Normal
- 283-6Engine Intake Valve Actuation System Oil Pressure Control Valve : Current Above Normal
- 283-7Engine Intake Valve Actuation System Oil Pressure Control Valve : Not Responding Properly
- 2838Transmission Hydrostatic Loop Resolved Pressure Sensor
- 2839Transmission Hydrostatic Loop B Pressure Sensor
- 284EMS System Enable (Engine Running Signal)
- 2840Right Auger Master Switch
- 2841Left Conveyor Master Switch
- 2842Right Conveyor Master Switch
- 2843Left Conveyor Stop Switch
- 2844Right Conveyor Stop Switch
- 2847Left Extender Panel Feeder Switch
- 2848Right Extender Panel Feeder Switch
- 2849Screed Panel Auger Height Adjustment Switch
- 285Low Left Track Tension Accumulator Pressure
- 2850Charging System Warning Indicator
- 2851Idle Shutdown Timer Relay
- 2852Compressor Discharge Pressure Sensor
- 2853Engine Aftercooler Coolant Temperature Control Module
- 285-5Engine Intake Valve Actuator #1 : Current Below Normal
- 285-6Engine Intake Valve Actuator #1 : Current Above Normal
- 285-7Engine Intake Valve Actuator #1 : Not Responding Properly
- 2859Transmission Dropbox Disconnect #1 Engage Solenoid
- 286Low Right Track Tension Accumulator Pressure
- 2860Transmission Dropbox Disconnect #2 Engage Solenoid
- 2861Transmission Dropbox Disconnect #3 Engage Solenoid
- 2862Transmission Dropbox Disconnect #1 Disengage Solenoid
- 2863Transmission Dropbox Disconnect #2 Disengage Solenoid
- 2864Transmission Dropbox Disconnect #3 Disengage Solenoid
- 286-5Engine Intake Valve Actuator #2 : Current Below Normal
- 286-6Engine Intake Valve Actuator #2 : Current Above Normal
- 286-7Engine Intake Valve Actuator #2 : Not Responding Properly
- 2868Powertrain Oil Tank Temperature Sensor
- 2869System Air Pressure Indicator
- 287High Left Track Tension Accumulator Pressure
- 2870Power Inverter #1 ECM Power Supply Output #4
- 2871Power Inverter #1 ECM Power Supply Output #5
- 2872Power Inverter #2 ECM Power Supply Output #4
- 2873Power Inverter #2 ECM Power Supply Output #5
- 2874Left Front Stabilizer Operator Switch
- 287-5Engine Intake Valve Actuator #3 : Current Below Normal
- 287-6Engine Intake Valve Actuator #3 : Current Above Normal
- 287-7Engine Intake Valve Actuator #3 : Not Responding Properly
- 2878Left Auger Master Switch
- 2879Left Front Stabilizer Extension Operator Switch
- 288High Right Track Tension Accumulator Pressure
- 2880Right Front Stabilizer Extension Operator Switch
- 2881Left Front Stabilizer Raise Solenoid
- 2882Left Front Stabilizer Lower Solenoid
- 2883Right Front Stabilizer Raise Solenoid
- 2884Right Front Stabilizer Lower Solenoid
- 288-5Engine Intake Valve Actuator #4 : Current Below Normal
- 288-6Engine Intake Valve Actuator #4 : Current Above Normal
- 288-7Engine Intake Valve Actuator #4 : Not Responding Properly
- 2888Right Rear Stabilizer Lower Solenoid
- 2889Left Front Stabilizer Extend Solenoid
- 289Fuel Pressure Sensor - before fuel filter
- 2890Left Front Stabilizer Retract Solenoid
- 2891Right Front Stabilizer Extend Solenoid
- 289-5Engine Intake Valve Actuator #5 : Current Below Normal
- 289-6Engine Intake Valve Actuator #5 : Current Above Normal
- 289-7Engine Intake Valve Actuator #5 : Not Responding Properly
- 2898Stabilizer Automatic Stow Switch
- 290Engine Cooling Fan Pump Pressure Sensor
- 2900Main Hydraulic Pump #2 Displacement Sensor
- 2901Transmission Regeneration Solenoid #1
- 2902Transmission Regeneration Solenoid #2
Other Caterpillar machine types
Fault code lists by brand
- Volvo6,508 codes
- New Holland Tractor3,475 codes
- FPT3,033 codes
- Case IH2,992 codes
- Bobcat2,653 codes
- Challenger Tractor2,434 codes
- New Holland Combine2,274 codes
- John Deere Tractors1,884 codes
- Case Wheel Loader1,859 codes
- John Deere Engines1,853 codes
- Cummins1,847 codes
- Challenger Rubber Track Tractor1,747 codes
- Volvo Wheel Loader1,726 codes
- Deutz1,684 codes
Safety-critical: confirm before use
Safety first: park on level ground, stop the engine, and secure the machine before any inspection. Thresholds, component locations, wire numbers, fuse locations, and reset procedures can vary by model, configuration, and serial number. Confirm them in the service documentation for your exact machine.