CAT Fault Codes List: 365-6 to 404
Page 30 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 365-6 to 404
- 365-6Engine Injector Cylinder #4 Actuator 2 : Current Above Normal
- 3659Injector cylinder #1 actuator issue
- 366Low Main Chamber Fuel Pressure
- 3660Injector cylinder #2 actuator issue
- 3661Injector cylinder #3 actuator issue
- 3662Injector cylinder #4 actuator issue
- 3663Injector cylinder #5 actuator issue
- 3664Injector cylinder #6 actuator issue
- 366-5Engine Injector Cylinder #5 Actuator 2 : Current Below Normal
- 366-6Engine Injector Cylinder #5 Actuator 2 : Current Above Normal
- 367High Main Chamber Fuel Pressure
- 367-5Engine Injector Cylinder #6 Actuator 2 : Current Below Normal
- 367-6Engine Injector Cylinder #6 Actuator 2 : Current Above Normal
- 3677Generator unavailable to start/run
- 368Transmission Auto/Manual Switch
- 369Transmission Gear Indicator input
- 37Engine Injector Cylinder #03 : Not Responding Properly
- 370Screed Material Height Sensor Changed during Operation
- 371Operator Station Selection Changed while Machine in Motion
- 3712DPF active regeneration inhibited due to system fault
- 3713DPF active regeneration inhibited due to timeout
- 3719DPF Soot Load - Moderate (level 2/3)
- 372Machine Operating in Open Loop
- 3720DPF Ash load at maximum limit (Remove DPF for cleaning)
- 373Machine Not Stopped in Allotted Time
- 373-3Aftertreatment #1 Secondary Air Differential Pressure : Voltage Above Normal
- 373-4Aftertreatment #1 Secondary Air Differential Pressure : Voltage Below Normal
- 374Feeder Switches in Manual Position at Start Up
- 375Swing Hydraulics Inhibit Solenoid
- 3750DPF Regen inhibited due to low exhaust temperatures
- 376Gear Change with Propel Lever Not in Neutral
- 377250 Hour Maintenance Due
- 378Machine Auto Lube Solenoid
- 3785Brake stroke issue on tractor axle 1 left
- 3786Brake stroke issue on tractor axle 1 right
- 3787Brake stroke issue on tractor axle 2 left
- 3788Brake stroke issue on tractor axle 2 right
- 3789Brake stroke issue on tractor axle 3 left
- 379Machine Auto Lube Pressure Sensor
- 3790Brake stroke issue on tractor axle 3 right
- 3791Brake stroke issue on tractor axle 4 left
- 3792Brake stroke issue on tractor axle 4 right
- 3793Brake stroke issue on tractor axle 5 left
- 3794Brake stroke issue on tractor axle 5 right
- 3795Brake stroke issue on trailer axle 1 left
- 3796Brake stroke issue on trailer axle 1 right
- 3797Brake stroke issue on trailer axle 2 left
- 3798Brake stroke issue on trailer axle 2 right
- 3799Brake stroke issue on trailer axle 3 left
- 380Transmission Modulation Supply Pressure Switch
- 3800Brake stroke issue on trailer axle 3 right
- 3801Brake stroke issue on trailer axle 4 left
- 3802Brake stroke issue on trailer axle 4 right
- 3803Brake stroke issue on trailer axle 5 left
- 3804Brake stroke issue on trailer axle 5 right
- 3805Tractor brake stroke alert monitor issue
- 3806Trailer brake stroke alert monitor issue
- 3807Park brake release inhibit request detected
- 3808Park brake release inhibit status issue
- 381Lift Lever Neutral Position Switch
- 382Rear Hitch Lever Position Sensor
- 3821EGR valve 2 control issue detected
- 38-3Second Fuel Level : Voltage Above Normal
- 3832-0Aftertreatment #1 Secondary Air Mass Flow : High - Least Severe (1)
- 3832-1Aftertreatment #1 Secondary Air Mass Flow : Low - Least Severe (1)
- 3839Brake Temperature Warning
- 38-4Second Fuel Level : Voltage Below Normal
- 385Tilt Lever Neutral Position Switch
- 385-1Engine Intake Valve Actuation System Oil Pressure : Low - moderate severity (2)
- 385-3Engine Intake Valve Actuation System Oil Pressure : Voltage Above Normal
- 385-4Engine Intake Valve Actuation System Oil Pressure : Voltage Below Normal
- 386Low Engine Coolant or Engine Oil Level
- 387Rear Hitch Lower Solenoid
- 387-0Aftertreatment 1 Secondary Air Mass Flow : High - Least Severe (1)
- 387-1Aftertreatment 1 Secondary Air Mass Flow : Low - Least Severe (1)
- 388Access Platform Not Compatible
- 388-11Diesel Particulate Filter Active Regeneration Inhibited Due to Permanent System Lockout
- 389Auxiliary Lever Neutral Position Switch
- 39Injection Actuation Pressure system fault
- 390Forward Drive Displacement Solenoid
- 391Reverse Drive Displacement Solenoid
- 392Charge Oil Solenoid
- 393High Inlet #2 Air Temperature
- 393-11Diesel Particulate Filter Active Regeneration Inhibited Due to Inhibit Switch
- 3936DPF Thermal management mode failed to raise DOC-In Temp as expected
- 394Wheel Motor Displacement Solenoid
- 394-11Diesel Particulate Filter Active Regeneration Inhibited Due to Temporary System Lockout
- 395Front Wheel Drive Pressure Selector Solenoid
- 396157 16 159 Fuel Rail pressure sensor High Fuel Rail Pressure
- 396-6Aftertreatment #1 Transformer Secondary Output : Current Above Normal
- 397Charge Pump Pressure Switch
- 398157 18 159 Fuel Rail pressure sensor Low Fuel Rail Pressure
- 399AWD Aggressiveness Control Lever Sensor
- 40Fault code 40 detected.
- 400Ground Speed Too High for Park Brake Engagement
- 4000Exhaust brake switch issue
- 401Ignition Transformer Secondary #1
- 402Ignition Transformer Secondary #2
- 403Ignition Transformer Secondary #3
- 404Ignition Transformer Secondary #4
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.